diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -1115,15 +1115,15 @@ self: super: {
     };
   };
   "pathlib2" = super.buildPythonPackage {
-    name = "pathlib2-2.3.4";
+    name = "pathlib2-2.3.5";
     doCheck = false;
     propagatedBuildInputs = [
       self."six"
       self."scandir"
     ];
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/b5/f4/9c7cc726ece2498b6c8b62d3262aa43f59039b953fe23c9964ac5e18d40b/pathlib2-2.3.4.tar.gz";
-      sha256 = "1y0f9rkm1924zrc5dn4bwxlhgdkbml82lkcc28l5rgmr7d918q24";
+      url = "https://files.pythonhosted.org/packages/94/d8/65c86584e7e97ef824a1845c72bbe95d79f5b306364fa778a3c3e401b309/pathlib2-2.3.5.tar.gz";
+      sha256 = "0s4qa8c082fdkb17izh4mfgwrjd1n5pya18wvrbwqdvvb5xs9nbc";
     };
     meta = {
       license = [ pkgs.lib.licenses.mit ];
diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ markupsafe==1.1.1
 msgpack-python==0.5.6
 pyotp==2.2.7
 packaging==15.2
-pathlib2==2.3.4
+pathlib2==2.3.5
 paste==3.2.1
 pastedeploy==2.0.1
 pastescript==3.2.0