diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -61,7 +61,7 @@ pip-packages:
 
 generate-js-pkgs:
 	rm -rf node_modules && \
-	nix-shell pkgs/shell-generate.nix --command "node2nix --input package.json -o pkgs/node-packages.nix -e pkgs/node-env.nix -c pkgs/node-default.nix -d --flatten --nodejs-8" && \
+	nix-shell pkgs/shell-generate.nix --command "node2nix --input package.json -o pkgs/node-packages.nix -e pkgs/node-env.nix -c pkgs/node-default.nix -d --flatten --nodejs-12" && \
 	sed -i -e 's/http:\/\//https:\/\//g' pkgs/node-packages.nix
 
 generate-license-meta:
diff --git a/pkgs/node-env.nix b/pkgs/node-env.nix
--- a/pkgs/node-env.nix
+++ b/pkgs/node-env.nix
@@ -11,7 +11,7 @@ let
 
     cat > $out/bin/tar <<EOF
     #! ${stdenv.shell} -e
-    $(type -p tar) "\$@" --warning=no-unknown-keyword
+    $(type -p tar) "\$@" --warning=no-unknown-keyword --delay-directory-restore
     EOF
 
     chmod +x $out/bin/tar
@@ -57,7 +57,7 @@ let
 
   # Recursively composes the dependencies of a package
   composePackage = { name, packageName, src, dependencies ? [], ... }@args:
-    ''
+    builtins.addErrorContext "while evaluating node package '${packageName}'" ''
       DIR=$(pwd)
       cd $TMPDIR
 
@@ -72,7 +72,7 @@ let
           packageDir="$(find . -maxdepth 1 -type d | tail -1)"
 
           # Restore write permissions to make building work
-          find "$packageDir" -type d -print0 | xargs -0 chmod u+x
+          find "$packageDir" -type d -exec chmod u+x {} \;
           chmod -R u+w "$packageDir"
 
           # Move the extracted tarball into the output folder
@@ -219,7 +219,16 @@ let
                       packageObj["_integrity"] = "sha1-000000000000000000000000000="; // When no _integrity string has been provided (e.g. by Git dependencies), add a dummy one. It does not seem to harm and it bypasses downloads.
                   }
 
-                  packageObj["_resolved"] = dependency.version; // Set the resolved version to the version identifier. This prevents NPM from cloning Git repositories.
+                  if(dependency.resolved) {
+                      packageObj["_resolved"] = dependency.resolved; // Adopt the resolved property if one has been provided
+                  } else {
+                      packageObj["_resolved"] = dependency.version; // Set the resolved version to the version identifier. This prevents NPM from cloning Git repositories.
+                  }
+
+                  if(dependency.from !== undefined) { // Adopt from property if one has been provided
+                      packageObj["_from"] = dependency.from;
+                  }
+
                   fs.writeFileSync(packageJSONPath, JSON.stringify(packageObj, null, 2));
               }
 
@@ -308,50 +317,11 @@ let
     '';
   };
 
-  # Builds and composes an NPM package including all its dependencies
-  buildNodePackage =
-    { name
-    , packageName
-    , version
-    , dependencies ? []
-    , buildInputs ? []
-    , production ? true
-    , npmFlags ? ""
-    , dontNpmInstall ? false
-    , bypassCache ? false
-    , preRebuild ? ""
-    , dontStrip ? true
-    , unpackPhase ? "true"
-    , buildPhase ? "true"
-    , ... }@args:
-
+  prepareAndInvokeNPM = {packageName, bypassCache, reconstructLock, npmFlags, production}:
     let
       forceOfflineFlag = if bypassCache then "--offline" else "--registry http://www.example.com";
-      extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "preRebuild" "unpackPhase" "buildPhase" ];
     in
-    stdenv.mkDerivation ({
-      name = "node-${name}-${version}";
-      buildInputs = [ tarWrapper python nodejs ]
-        ++ stdenv.lib.optional (stdenv.isLinux) utillinux
-        ++ stdenv.lib.optional (stdenv.isDarwin) libtool
-        ++ buildInputs;
-
-      inherit dontStrip; # Stripping may fail a build for some package deployments
-      inherit dontNpmInstall preRebuild unpackPhase buildPhase;
-
-      compositionScript = composePackage args;
-      pinpointDependenciesScript = pinpointDependenciesOfPackage args;
-
-      passAsFile = [ "compositionScript" "pinpointDependenciesScript" ];
-
-      installPhase = ''
-        # Create and enter a root node_modules/ folder
-        mkdir -p $out/lib/node_modules
-        cd $out/lib/node_modules
-
-        # Compose the package and all its dependencies
-        source $compositionScriptPath
-
+    ''
         # Pinpoint the versions of all dependencies to the ones that are actually being used
         echo "pinpointing versions of dependencies..."
         source $pinpointDependenciesScriptPath
@@ -375,24 +345,80 @@ let
         runHook preRebuild
 
         ${stdenv.lib.optionalString bypassCache ''
-          if [ ! -f package-lock.json ]
-          then
-              echo "No package-lock.json file found, reconstructing..."
-              node ${reconstructPackageLock}
-          fi
+          ${stdenv.lib.optionalString reconstructLock ''
+            if [ -f package-lock.json ]
+            then
+                echo "WARNING: Reconstruct lock option enabled, but a lock file already exists!"
+                echo "This will most likely result in version mismatches! We will remove the lock file and regenerate it!"
+                rm package-lock.json
+            else
+                echo "No package-lock.json file found, reconstructing..."
+            fi
+
+            node ${reconstructPackageLock}
+          ''}
 
           node ${addIntegrityFieldsScript}
         ''}
 
         npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${stdenv.lib.optionalString production "--production"} rebuild
 
-        if [ "$dontNpmInstall" != "1" ]
+        if [ "''${dontNpmInstall-}" != "1" ]
         then
             # NPM tries to download packages even when they already exist if npm-shrinkwrap is used.
             rm -f npm-shrinkwrap.json
 
             npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${stdenv.lib.optionalString production "--production"} install
         fi
+    '';
+
+  # Builds and composes an NPM package including all its dependencies
+  buildNodePackage =
+    { name
+    , packageName
+    , version
+    , dependencies ? []
+    , buildInputs ? []
+    , production ? true
+    , npmFlags ? ""
+    , dontNpmInstall ? false
+    , bypassCache ? false
+    , reconstructLock ? false
+    , preRebuild ? ""
+    , dontStrip ? true
+    , unpackPhase ? "true"
+    , buildPhase ? "true"
+    , ... }@args:
+
+    let
+      extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "preRebuild" "unpackPhase" "buildPhase" ];
+    in
+    stdenv.mkDerivation ({
+      name = "node_${name}-${version}";
+      buildInputs = [ tarWrapper python nodejs ]
+        ++ stdenv.lib.optional (stdenv.isLinux) utillinux
+        ++ stdenv.lib.optional (stdenv.isDarwin) libtool
+        ++ buildInputs;
+
+      inherit nodejs;
+
+      inherit dontStrip; # Stripping may fail a build for some package deployments
+      inherit dontNpmInstall preRebuild unpackPhase buildPhase;
+
+      compositionScript = composePackage args;
+      pinpointDependenciesScript = pinpointDependenciesOfPackage args;
+
+      passAsFile = [ "compositionScript" "pinpointDependenciesScript" ];
+
+      installPhase = ''
+        # Create and enter a root node_modules/ folder
+        mkdir -p $out/lib/node_modules
+        cd $out/lib/node_modules
+
+        # Compose the package and all its dependencies
+        source $compositionScriptPath
+
+        ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }}
 
         # Create symlink to the deployed executable folder, if applicable
         if [ -d "$out/lib/node_modules/.bin" ]
@@ -431,14 +457,13 @@ let
     , npmFlags ? ""
     , dontNpmInstall ? false
     , bypassCache ? false
+    , reconstructLock ? false
     , dontStrip ? true
     , unpackPhase ? "true"
     , buildPhase ? "true"
     , ... }@args:
 
     let
-      forceOfflineFlag = if bypassCache then "--offline" else "--registry http://www.example.com";
-
       extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" ];
 
       nodeDependencies = stdenv.mkDerivation ({
@@ -473,39 +498,13 @@ let
             fi
           ''}
 
-          # Pinpoint the versions of all dependencies to the ones that are actually being used
-          echo "pinpointing versions of dependencies..."
+          # Go to the parent folder to make sure that all packages are pinpointed
           cd ..
           ${stdenv.lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
 
-          source $pinpointDependenciesScriptPath
-          cd ${packageName}
-
-          # Patch the shebangs of the bundled modules to prevent them from
-          # calling executables outside the Nix store as much as possible
-          patchShebangs .
-
-          export HOME=$PWD
+          ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }}
 
-          ${stdenv.lib.optionalString bypassCache ''
-            if [ ! -f package-lock.json ]
-            then
-                echo "No package-lock.json file found, reconstructing..."
-                node ${reconstructPackageLock}
-            fi
-
-            node ${addIntegrityFieldsScript}
-          ''}
-
-          npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${stdenv.lib.optionalString production "--production"} rebuild
-
-          ${stdenv.lib.optionalString (!dontNpmInstall) ''
-            # NPM tries to download packages even when they already exist if npm-shrinkwrap is used.
-            rm -f npm-shrinkwrap.json
-
-            npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${stdenv.lib.optionalString production "--production"} install
-          ''}
-
+          # Expose the executables that were installed
           cd ..
           ${stdenv.lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
 
@@ -531,7 +530,8 @@ let
       # Provide the dependencies in a development shell through the NODE_PATH environment variable
       inherit nodeDependencies;
       shellHook = stdenv.lib.optionalString (dependencies != []) ''
-        export NODE_PATH=$nodeDependencies/lib/node_modules
+        export NODE_PATH=${nodeDependencies}/lib/node_modules
+        export PATH="${nodeDependencies}/bin:$PATH"
       '';
     };
 in
diff --git a/pkgs/node-packages.nix b/pkgs/node-packages.nix
--- a/pkgs/node-packages.nix
+++ b/pkgs/node-packages.nix
@@ -1,4 +1,4 @@
-# This file has been generated by node2nix 1.6.0. Do not edit!
+# This file has been generated by node2nix 1.8.0. Do not edit!
 
 {nodeEnv, fetchurl, fetchgit, globalBuildInputs ? []}:
 
@@ -211,13 +211,13 @@ let
         sha512 = "yiUk09opTEnE1lK+tb501ENb+yQBi4p++Ep0eGJAHesVYKVMPNgPphVKkIizkDaU+n0SE+zXfTsRbYyOMDYXSg==";
       };
     };
-    "@polymer/polymer-3.3.1" = {
+    "@polymer/polymer-3.4.1" = {
       name = "_at_polymer_slash_polymer";
       packageName = "@polymer/polymer";
-      version = "3.3.1";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/@polymer/polymer/-/polymer-3.3.1.tgz";
-        sha512 = "8KaB48tzyMjdsHdxo5KvCAaqmTe7rYDzQAoj/pyEfq9Fp4YfUaS+/xqwYj0GbiDAUNzwkmEQ7dw9cgnRNdKO8A==";
+      version = "3.4.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/@polymer/polymer/-/polymer-3.4.1.tgz";
+        sha512 = "KPWnhDZibtqKrUz7enIPOiO4ZQoJNOuLwqrhV2MXzIt3VVnUVJVG5ORz4Z2sgO+UZ+/UZnPD0jqY+jmw/+a9mQ==";
       };
     };
     "@types/clone-0.1.30" = {
@@ -499,13 +499,13 @@ let
         sha1 = "82ffb02b29e662ae53bdc20af15947706739c536";
       };
     };
-    "ajv-6.12.0" = {
+    "ajv-6.12.2" = {
       name = "ajv";
       packageName = "ajv";
-      version = "6.12.0";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz";
-        sha512 = "D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==";
+      version = "6.12.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/ajv/-/ajv-6.12.2.tgz";
+        sha512 = "k+V+hzjm5q/Mr8ef/1Y9goCmlsK4I6Sm74teeyGvFk1XrOsbsKLjEdrvny42CZ+a8sXbk8KWpY/bDwS+FLL2UQ==";
       };
     };
     "ajv-keywords-3.4.1" = {
@@ -1472,6 +1472,15 @@ let
         sha512 = "ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==";
       };
     };
+    "bn.js-5.1.1" = {
+      name = "bn.js";
+      packageName = "bn.js";
+      version = "5.1.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/bn.js/-/bn.js-5.1.1.tgz";
+        sha512 = "IUTD/REb78Z2eodka1QZyyEk66pciRcP6Sroka0aI3tG/iwIdYLrBD62RsubR7vqdt3WyX8p4jxeatzmRSphtA==";
+      };
+    };
     "boolbase-1.0.0" = {
       name = "boolbase";
       packageName = "boolbase";
@@ -1553,13 +1562,13 @@ let
         sha1 = "21e0abfaf6f2029cf2fafb133567a701d4135524";
       };
     };
-    "browserify-sign-4.0.4" = {
+    "browserify-sign-4.1.0" = {
       name = "browserify-sign";
       packageName = "browserify-sign";
-      version = "4.0.4";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/browserify-sign/-/browserify-sign-4.0.4.tgz";
-        sha1 = "aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298";
+      version = "4.1.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/browserify-sign/-/browserify-sign-4.1.0.tgz";
+        sha512 = "VYxo7cDCeYUoBZ0ZCy4UyEUCP3smyBd4DRQM5nrFS1jJjPJjX7rP3oLRpPoWfkhQfyJ0I9ZbHbKafrFD/SGlrg==";
       };
     };
     "browserify-zlib-0.2.0" = {
@@ -1679,22 +1688,22 @@ let
         sha1 = "b534e7c734c4f81ec5fbe8aca2ad24354b962c6c";
       };
     };
-    "caniuse-db-1.0.30001042" = {
+    "caniuse-db-1.0.30001055" = {
       name = "caniuse-db";
       packageName = "caniuse-db";
-      version = "1.0.30001042";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30001042.tgz";
-        sha512 = "2RKrB2hkLCW/8Uj32oaXj0O+N9ROo0/BF0EueWHwgs6AeeSiL+rCSsbICR3ayBJOZavgcFx65ZCw7QiafsoUFQ==";
-      };
-    };
-    "caniuse-lite-1.0.30001042" = {
+      version = "1.0.30001055";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30001055.tgz";
+        sha512 = "WgyNA+lEteIfAQlUfSRb0zvY8EKJnOZ4GcFzKveNb2+4UaFuMk3RiY1mdKA2MQYhVxfLdFdbNxLs6Iym94An7Q==";
+      };
+    };
+    "caniuse-lite-1.0.30001055" = {
       name = "caniuse-lite";
       packageName = "caniuse-lite";
-      version = "1.0.30001042";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001042.tgz";
-        sha512 = "igMQ4dlqnf4tWv0xjaaE02op9AJ2oQzXKjWf4EuAHFN694Uo9/EfPVIPJcmn2WkU9RqozCxx5e2KPcVClHDbDw==";
+      version = "1.0.30001055";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001055.tgz";
+        sha512 = "MbwsBmKrBSKIWldfdIagO5OJWZclpJtS4h0Jrk/4HFrXJxTdVdH23Fd+xCiHriVGvYcWyW8mR/CPsYajlH8Iuw==";
       };
     };
     "caseless-0.12.0" = {
@@ -2552,13 +2561,13 @@ let
         sha1 = "3a83a904e54353287874c564b7549386849a98c9";
       };
     };
-    "electron-to-chromium-1.3.412" = {
+    "electron-to-chromium-1.3.433" = {
       name = "electron-to-chromium";
       packageName = "electron-to-chromium";
-      version = "1.3.412";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.412.tgz";
-        sha512 = "4bVdSeJScR8fT7ERveLWbxemY5uXEHVseqMRyORosiKcTUSGtVwBkV8uLjXCqoFLeImA57Z9hbz3TOid01U4Hw==";
+      version = "1.3.433";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.433.tgz";
+        sha512 = "C0gcgwB8RpPAq2Ia6teihNOHOfNzGy4jJXgjIXSmKdt6O2xrJM8CPjA8jTFyo97KozVrZ8oH2FUCixC6Hnuk2g==";
       };
     };
     "elliptic-6.5.2" = {
@@ -2624,13 +2633,13 @@ let
         sha1 = "b2987aa3821347fcde642b24fdfc9e4fb712bf26";
       };
     };
-    "entities-2.0.0" = {
+    "entities-2.0.2" = {
       name = "entities";
       packageName = "entities";
-      version = "2.0.0";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/entities/-/entities-2.0.0.tgz";
-        sha512 = "D9f7V0JSRwIxlRI2mjMqufDrRDnx8p+eEOz7aUM9SuvF8gsBzra0/6tbjl1m8eQHrZlYj6PxqE00hZ1SAIKPLw==";
+      version = "2.0.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/entities/-/entities-2.0.2.tgz";
+        sha512 = "dmD3AvJQBUjKpcNkoqr+x+IF0SdRtPz9Vk0uTy4yWqga9ibB6s4v++QFWNohjiUGoMlF552ZvNyXDxz5iW0qmw==";
       };
     };
     "errno-0.1.7" = {
@@ -3101,13 +3110,13 @@ let
         sha1 = "1504ad2523158caa40db4a2787cb01411994ea4f";
       };
     };
-    "fsevents-1.2.12" = {
+    "fsevents-1.2.13" = {
       name = "fsevents";
       packageName = "fsevents";
-      version = "1.2.12";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/fsevents/-/fsevents-1.2.12.tgz";
-        sha512 = "Ggd/Ktt7E7I8pxZRbGIs7vwqAPscSESMrCSkx2FtWeqmheJgCo2R74fTsZFCifr0VTPwqRpPv17+6b8Zp7th0Q==";
+      version = "1.2.13";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/fsevents/-/fsevents-1.2.13.tgz";
+        sha512 = "oWb1Z6mkHIskLzEJ/XWX0srkpkTQ7vaopMQkyaEIoq0fmtFVxOthb8cCxeT+p3ynTdkk/RZwbgG4brR5BeWECw==";
       };
     };
     "function-bind-1.1.1" = {
@@ -3281,13 +3290,13 @@ let
         sha1 = "15a4806a57547cb2d2dbf27f42e89a8c3451b364";
       };
     };
-    "graceful-fs-4.2.3" = {
+    "graceful-fs-4.2.4" = {
       name = "graceful-fs";
       packageName = "graceful-fs";
-      version = "4.2.3";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.3.tgz";
-        sha512 = "a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ==";
+      version = "4.2.4";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.4.tgz";
+        sha512 = "WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==";
       };
     };
     "grunt-0.4.5" = {
@@ -3524,13 +3533,13 @@ let
         sha1 = "95b0b63fec2146619a6fe57fe75628d5a39efe4f";
       };
     };
-    "hash-base-3.0.4" = {
+    "hash-base-3.1.0" = {
       name = "hash-base";
       packageName = "hash-base";
-      version = "3.0.4";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/hash-base/-/hash-base-3.0.4.tgz";
-        sha1 = "5fc8686847ecd73499403319a6b0a3f3f6ae4918";
+      version = "3.1.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/hash-base/-/hash-base-3.1.0.tgz";
+        sha512 = "1nmYp/rhMDiE7AYkDw+lLwlAzz0AntGIe51F3RfFfEqyQ3feY2eI/NcwC6umIQVOASPMsWJLJScWKSSvzL9IVA==";
       };
     };
     "hash.js-1.1.7" = {
@@ -4730,22 +4739,22 @@ let
         sha512 = "x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==";
       };
     };
-    "mime-db-1.43.0" = {
+    "mime-db-1.44.0" = {
       name = "mime-db";
       packageName = "mime-db";
-      version = "1.43.0";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/mime-db/-/mime-db-1.43.0.tgz";
-        sha512 = "+5dsGEEovYbT8UY9yD7eE4XTc4UwJ1jBYlgaQQF38ENsKR3wj/8q8RFZrF9WIZpB2V1ArTVFUva8sAul1NzRzQ==";
-      };
-    };
-    "mime-types-2.1.26" = {
+      version = "1.44.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/mime-db/-/mime-db-1.44.0.tgz";
+        sha512 = "/NOTfLrsPBVeH7YtFPgsVWveuL+4SjjYxaQ1xtM1KMFj7HdxlBlxeyNLzhyJVx7r4rZGJAZ/6lkKCitSc/Nmpg==";
+      };
+    };
+    "mime-types-2.1.27" = {
       name = "mime-types";
       packageName = "mime-types";
-      version = "2.1.26";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/mime-types/-/mime-types-2.1.26.tgz";
-        sha512 = "01paPWYgLrkqAyrlDorC1uDwl2p3qZT7yl806vW7DvDoxwXi46jsjFbg+WdwotBIk6/MbEhO/dh5aZ5sNj/dWQ==";
+      version = "2.1.27";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/mime-types/-/mime-types-2.1.27.tgz";
+        sha512 = "JIhqnCasI9yD+SsmkquHBxTSEuZdQX5BuQnS2Vc7puQQQ+8yiP5AY5uWhpdv4YL4VM5c6iliiYWPgJ/nJQLp7w==";
       };
     };
     "mimic-fn-2.1.0" = {
@@ -4838,13 +4847,13 @@ let
         sha512 = "NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==";
       };
     };
-    "moment-2.24.0" = {
+    "moment-2.25.3" = {
       name = "moment";
       packageName = "moment";
-      version = "2.24.0";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz";
-        sha512 = "bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==";
+      version = "2.25.3";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/moment/-/moment-2.25.3.tgz";
+        sha512 = "PuYv0PHxZvzc15Sp8ybUCoQ+xpyPWvjOuK72a5ovzp2LI32rJXOiIfyoFoYvG3s6EwwrdkMyWuRiEHSZRLJNdg==";
       };
     };
     "mousetrap-1.6.5" = {
@@ -4874,13 +4883,13 @@ let
         sha1 = "5608aeadfc00be6c2901df5f9861788de0d597c8";
       };
     };
-    "nan-2.14.0" = {
+    "nan-2.14.1" = {
       name = "nan";
       packageName = "nan";
-      version = "2.14.0";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz";
-        sha512 = "INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==";
+      version = "2.14.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/nan/-/nan-2.14.1.tgz";
+        sha512 = "isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==";
       };
     };
     "nanomatch-1.2.13" = {
@@ -6071,6 +6080,15 @@ let
         sha512 = "Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==";
       };
     };
+    "readable-stream-3.6.0" = {
+      name = "readable-stream";
+      packageName = "readable-stream";
+      version = "3.6.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz";
+        sha512 = "BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==";
+      };
+    };
     "readdirp-2.2.1" = {
       name = "readdirp";
       packageName = "readdirp";
@@ -6296,13 +6314,13 @@ let
         sha1 = "97f717b69d48784f5f526a6c5aa8ffdda055a4d1";
       };
     };
-    "resolve-1.16.0" = {
+    "resolve-1.17.0" = {
       name = "resolve";
       packageName = "resolve";
-      version = "1.16.0";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/resolve/-/resolve-1.16.0.tgz";
-        sha512 = "LarL/PIKJvc09k1jaeT4kQb/8/7P+qV4qSnN2K80AES+OHdfZELAKVOBjxsvtToT/uLOfFbvYvKfZmV8cee7nA==";
+      version = "1.17.0";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/resolve/-/resolve-1.17.0.tgz";
+        sha512 = "ic+7JYiV8Vi2yzQGFWOkiZD5Z9z7O2Zhm9XMaTxdJExKasieFCr+yXZ/WmXsckHiKl12ar0y6XiXDx3m4RHn1w==";
       };
     };
     "resolve-cwd-2.0.0" = {
@@ -6404,13 +6422,13 @@ let
         sha512 = "Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==";
       };
     };
-    "safe-buffer-5.2.0" = {
+    "safe-buffer-5.2.1" = {
       name = "safe-buffer";
       packageName = "safe-buffer";
-      version = "5.2.0";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz";
-        sha512 = "fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==";
+      version = "5.2.1";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz";
+        sha512 = "rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==";
       };
     };
     "safe-regex-1.1.0" = {
@@ -6980,13 +6998,13 @@ let
         sha1 = "9f5772413952135c6fefbf40afe6a4faa88b4bb5";
       };
     };
-    "sweetalert2-9.10.12" = {
+    "sweetalert2-9.10.13" = {
       name = "sweetalert2";
       packageName = "sweetalert2";
-      version = "9.10.12";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/sweetalert2/-/sweetalert2-9.10.12.tgz";
-        sha512 = "RnarmbDGTPmwecJbaVdq5LvlzbVReIOtPk0huPnXOE19G00xMxGcTY0wjt9AjwsexUnLivLXc3b6nD6+D6NlGg==";
+      version = "9.10.13";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/sweetalert2/-/sweetalert2-9.10.13.tgz";
+        sha512 = "JiZtO9SQdnS/Uvlqw5MlWpGpYVqH/eBQi7u61+Oxba7ZA4vfX0tSdyzQsiMk56HTUw8Nk8IvNPvfbt3WR3FOsQ==";
       };
     };
     "tapable-0.2.9" = {
@@ -7133,13 +7151,13 @@ let
         sha1 = "30c6203e1e66b841a88701ed8858f1725d94b026";
       };
     };
-    "tslib-1.11.1" = {
+    "tslib-1.11.2" = {
       name = "tslib";
       packageName = "tslib";
-      version = "1.11.1";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz";
-        sha512 = "aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA==";
+      version = "1.11.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/tslib/-/tslib-1.11.2.tgz";
+        sha512 = "tTSkux6IGPnUGUd1XAZHcpu85MOkIl5zX49pO+jfsie3eP0B6pyhOlLXm3cAC6T7s+euSDDUUV+Acop5WmtkVg==";
       };
     };
     "tty-browserify-0.0.0" = {
@@ -7205,13 +7223,13 @@ let
         sha512 = "Y2VsbPVs0FIshJztycsO2SfPk7/KAF/T72qzv9u5EpQ4kB2hQoHlhNQTsNyy6ul7lQtqJN/AoWeS23OzEiEFxw==";
       };
     };
-    "uglify-js-3.9.1" = {
+    "uglify-js-3.9.2" = {
       name = "uglify-js";
       packageName = "uglify-js";
-      version = "3.9.1";
-      src = fetchurl {
-        url = "https://registry.npmjs.org/uglify-js/-/uglify-js-3.9.1.tgz";
-        sha512 = "JUPoL1jHsc9fOjVFHdQIhqEEJsQvfKDjlubcCilu8U26uZ73qOg8VsN8O1jbuei44ZPlwL7kmbAdM4tzaUvqnA==";
+      version = "3.9.2";
+      src = fetchurl {
+        url = "https://registry.npmjs.org/uglify-js/-/uglify-js-3.9.2.tgz";
+        sha512 = "zGVwKslUAD/EeqOrD1nQaBmXIHl1Vw371we8cvS8I6mYK9rmgX5tv8AAeJdfsQ3Kk5mGax2SVV/AizxdNGhl7Q==";
       };
     };
     "uglify-to-browserify-1.0.2" = {
@@ -7731,7 +7749,7 @@ let
   args = {
     name = "rhodecode-enterprise";
     packageName = "rhodecode-enterprise";
-    version = "2.0.0";
+    version = "3.0.0";
     src = ./..;
     dependencies = [
       sources."@polymer/font-roboto-3.0.2"
@@ -7757,7 +7775,7 @@ let
       sources."@polymer/paper-toast-3.0.1"
       sources."@polymer/paper-toggle-button-3.0.1"
       sources."@polymer/paper-tooltip-3.0.1"
-      sources."@polymer/polymer-3.3.1"
+      sources."@polymer/polymer-3.4.1"
       sources."@types/clone-0.1.30"
       sources."@types/node-6.14.10"
       sources."@types/parse5-2.2.34"
@@ -7824,7 +7842,11 @@ let
       sources."array-unique-0.3.2"
       sources."asap-2.0.6"
       sources."asn1-0.2.4"
-      sources."asn1.js-4.10.1"
+      (sources."asn1.js-4.10.1" // {
+        dependencies = [
+          sources."bn.js-4.11.8"
+        ];
+      })
       (sources."assert-1.5.0" // {
         dependencies = [
           sources."inherits-2.0.1"
@@ -7960,7 +7982,7 @@ let
       sources."binary-extensions-1.13.1"
       sources."bindings-1.5.0"
       sources."bluebird-3.7.2"
-      sources."bn.js-4.11.8"
+      sources."bn.js-5.1.1"
       sources."boolbase-1.0.0"
       sources."boom-2.10.1"
       sources."brace-expansion-1.1.11"
@@ -7973,8 +7995,17 @@ let
       sources."browserify-aes-1.2.0"
       sources."browserify-cipher-1.0.1"
       sources."browserify-des-1.0.2"
-      sources."browserify-rsa-4.0.1"
-      sources."browserify-sign-4.0.4"
+      (sources."browserify-rsa-4.0.1" // {
+        dependencies = [
+          sources."bn.js-4.11.8"
+        ];
+      })
+      (sources."browserify-sign-4.1.0" // {
+        dependencies = [
+          sources."readable-stream-3.6.0"
+          sources."string_decoder-1.3.0"
+        ];
+      })
       sources."browserify-zlib-0.2.0"
       sources."browserslist-3.2.8"
       sources."buffer-4.9.2"
@@ -7984,7 +8015,7 @@ let
       (sources."cacache-10.0.4" // {
         dependencies = [
           sources."glob-7.1.6"
-          sources."graceful-fs-4.2.3"
+          sources."graceful-fs-4.2.4"
           sources."lru-cache-4.1.5"
           sources."minimatch-3.0.4"
           sources."rimraf-2.7.1"
@@ -7998,8 +8029,8 @@ let
           sources."browserslist-1.7.7"
         ];
       })
-      sources."caniuse-db-1.0.30001042"
-      sources."caniuse-lite-1.0.30001042"
+      sources."caniuse-db-1.0.30001055"
+      sources."caniuse-lite-1.0.30001055"
       sources."caseless-0.12.0"
       sources."center-align-0.1.3"
       sources."chalk-0.5.1"
@@ -8103,7 +8134,11 @@ let
       })
       sources."core-js-2.6.11"
       sources."core-util-is-1.0.2"
-      sources."create-ecdh-4.0.3"
+      (sources."create-ecdh-4.0.3" // {
+        dependencies = [
+          sources."bn.js-4.11.8"
+        ];
+      })
       sources."create-hash-1.2.0"
       sources."create-hmac-1.1.7"
       (sources."cross-spawn-6.0.5" // {
@@ -8148,13 +8183,17 @@ let
       sources."des.js-1.0.1"
       sources."detect-file-1.0.0"
       sources."detect-indent-4.0.0"
-      sources."diffie-hellman-5.0.3"
+      (sources."diffie-hellman-5.0.3" // {
+        dependencies = [
+          sources."bn.js-4.11.8"
+        ];
+      })
       sources."dir-glob-2.2.2"
       sources."dom-converter-0.2.0"
       (sources."dom-serializer-0.2.2" // {
         dependencies = [
           sources."domelementtype-2.0.1"
-          sources."entities-2.0.0"
+          sources."entities-2.0.2"
         ];
       })
       (sources."dom5-2.3.0" // {
@@ -8177,13 +8216,17 @@ let
         ];
       })
       sources."ecc-jsbn-0.1.2"
-      sources."electron-to-chromium-1.3.412"
-      sources."elliptic-6.5.2"
+      sources."electron-to-chromium-1.3.433"
+      (sources."elliptic-6.5.2" // {
+        dependencies = [
+          sources."bn.js-4.11.8"
+        ];
+      })
       sources."emojis-list-3.0.0"
       sources."end-of-stream-1.4.4"
       (sources."enhanced-resolve-4.1.1" // {
         dependencies = [
-          sources."graceful-fs-4.2.3"
+          sources."graceful-fs-4.2.4"
           sources."memory-fs-0.5.0"
           sources."readable-stream-2.3.7"
           sources."safe-buffer-5.1.2"
@@ -8286,11 +8329,11 @@ let
       })
       (sources."fs-write-stream-atomic-1.0.10" // {
         dependencies = [
-          sources."graceful-fs-4.2.3"
+          sources."graceful-fs-4.2.4"
         ];
       })
       sources."fs.realpath-1.0.0"
-      sources."fsevents-1.2.12"
+      sources."fsevents-1.2.13"
       sources."function-bind-1.1.1"
       sources."gaze-0.5.2"
       sources."get-caller-file-1.0.3"
@@ -8418,7 +8461,12 @@ let
           sources."kind-of-4.0.0"
         ];
       })
-      sources."hash-base-3.0.4"
+      (sources."hash-base-3.1.0" // {
+        dependencies = [
+          sources."readable-stream-3.6.0"
+          sources."string_decoder-1.3.0"
+        ];
+      })
       sources."hash.js-1.1.7"
       sources."hawk-3.1.3"
       sources."he-1.2.0"
@@ -8548,7 +8596,7 @@ let
       sources."lcid-2.0.0"
       (sources."less-2.7.3" // {
         dependencies = [
-          sources."graceful-fs-4.2.3"
+          sources."graceful-fs-4.2.4"
         ];
       })
       (sources."liftoff-2.5.0" // {
@@ -8595,10 +8643,14 @@ let
         ];
       })
       sources."micromatch-3.1.10"
-      sources."miller-rabin-4.0.1"
+      (sources."miller-rabin-4.0.1" // {
+        dependencies = [
+          sources."bn.js-4.11.8"
+        ];
+      })
       sources."mime-1.6.0"
-      sources."mime-db-1.43.0"
-      sources."mime-types-2.1.26"
+      sources."mime-db-1.44.0"
+      sources."mime-types-2.1.27"
       sources."mimic-fn-2.1.0"
       sources."minimalistic-assert-1.0.1"
       sources."minimalistic-crypto-utils-1.0.1"
@@ -8611,7 +8663,7 @@ let
         ];
       })
       sources."mkdirp-0.5.5"
-      sources."moment-2.24.0"
+      sources."moment-2.25.3"
       sources."mousetrap-1.6.5"
       (sources."move-concurrently-1.0.1" // {
         dependencies = [
@@ -8621,7 +8673,7 @@ let
         ];
       })
       sources."ms-2.0.0"
-      sources."nan-2.14.0"
+      sources."nan-2.14.1"
       sources."nanomatch-1.2.13"
       sources."neo-async-2.6.1"
       sources."nice-try-1.0.5"
@@ -8636,7 +8688,7 @@ let
           sources."safe-buffer-5.1.2"
           (sources."string_decoder-1.3.0" // {
             dependencies = [
-              sources."safe-buffer-5.2.0"
+              sources."safe-buffer-5.2.1"
             ];
           })
         ];
@@ -8828,7 +8880,11 @@ let
       sources."promise-inflight-1.0.1"
       sources."prr-1.0.1"
       sources."pseudomap-1.0.2"
-      sources."public-encrypt-4.0.3"
+      (sources."public-encrypt-4.0.3" // {
+        dependencies = [
+          sources."bn.js-4.11.8"
+        ];
+      })
       sources."pump-2.0.1"
       sources."pumpify-1.5.1"
       sources."punycode-1.4.1"
@@ -8848,7 +8904,7 @@ let
       })
       (sources."readdirp-2.2.1" // {
         dependencies = [
-          sources."graceful-fs-4.2.3"
+          sources."graceful-fs-4.2.4"
           sources."readable-stream-2.3.7"
           sources."safe-buffer-5.1.2"
           sources."string_decoder-1.1.1"
@@ -8892,7 +8948,7 @@ let
       sources."request-2.81.0"
       sources."require-directory-2.1.1"
       sources."require-main-filename-1.0.1"
-      sources."resolve-1.16.0"
+      sources."resolve-1.17.0"
       sources."resolve-cwd-2.0.0"
       sources."resolve-dir-1.0.1"
       sources."resolve-from-3.0.0"
@@ -8902,13 +8958,13 @@ let
       sources."rimraf-2.2.8"
       sources."ripemd160-2.0.2"
       sources."run-queue-1.0.3"
-      sources."safe-buffer-5.2.0"
+      sources."safe-buffer-5.2.1"
       sources."safe-regex-1.1.0"
       sources."safer-buffer-2.1.2"
       sources."sax-1.2.4"
       (sources."schema-utils-0.4.7" // {
         dependencies = [
-          sources."ajv-6.12.0"
+          sources."ajv-6.12.2"
         ];
       })
       sources."select-1.1.2"
@@ -9032,7 +9088,7 @@ let
           sources."js-yaml-3.7.0"
         ];
       })
-      sources."sweetalert2-9.10.12"
+      sources."sweetalert2-9.10.13"
       sources."tapable-1.1.3"
       sources."through-2.3.8"
       (sources."through2-2.0.5" // {
@@ -9068,13 +9124,13 @@ let
           sources."colors-1.4.0"
           sources."emojis-list-2.1.0"
           sources."enhanced-resolve-3.4.1"
-          sources."graceful-fs-4.2.3"
+          sources."graceful-fs-4.2.4"
           sources."json5-0.5.1"
           sources."loader-utils-0.2.17"
           sources."tapable-0.2.9"
         ];
       })
-      sources."tslib-1.11.1"
+      sources."tslib-1.11.2"
       sources."tty-browserify-0.0.0"
       sources."tunnel-agent-0.6.0"
       sources."tweetnacl-0.14.5"
@@ -9085,7 +9141,7 @@ let
           sources."source-map-0.6.1"
         ];
       })
-      sources."uglify-js-3.9.1"
+      sources."uglify-js-3.9.2"
       sources."uglify-to-browserify-1.0.2"
       (sources."uglifyjs-webpack-plugin-1.3.0" // {
         dependencies = [
@@ -9149,13 +9205,13 @@ let
       sources."vm-browserify-1.1.2"
       (sources."watchpack-1.6.1" // {
         dependencies = [
-          sources."graceful-fs-4.2.3"
+          sources."graceful-fs-4.2.4"
         ];
       })
       sources."waypoints-4.0.1"
       (sources."webpack-4.23.1" // {
         dependencies = [
-          sources."ajv-6.12.0"
+          sources."ajv-6.12.2"
         ];
       })
       (sources."webpack-cli-3.1.2" // {
@@ -9225,9 +9281,12 @@ let
     };
     production = false;
     bypassCache = true;
+    reconstructLock = true;
   };
 in
 {
+  args = args;
+  sources = sources;
   tarball = nodeEnv.buildNodeSourceDist args;
   package = nodeEnv.buildNodePackage args;
   shell = nodeEnv.buildNodeShell args;
diff --git a/webpack.config.js b/webpack.config.js
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -20,7 +20,7 @@ let babelRCOptions = {
         }]
     ],
     "plugins": ["transform-object-rest-spread"]
-}
+};
 
 module.exports = {
     // Tell Webpack which file kicks off our app.
@@ -33,6 +33,7 @@ module.exports = {
     },
     // Tell Webpack which directories to look in to resolve import statements.
     // Normally Webpack will look in node_modules by default but since we’re overriding
+    // the property we’ll need to tell it to look there.
     resolve: {
         modules: [
             path.resolve(__dirname, 'node_modules'),
@@ -55,8 +56,7 @@ module.exports = {
                 // polymer-webpack-loader, and hand the output to
                 // babel-loader. This let's us transpile JS in our `<script>` elements.
                 use: [
-                    {loader: 'babel-loader',
-                    options: babelRCOptions},
+                    {loader: 'babel-loader', options: babelRCOptions},
                     {loader: 'polymer-webpack-loader',
                         options: {
                             processStyleLinks: true,