diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -1134,13 +1134,13 @@
     };
   };
   psutil = super.buildPythonPackage {
-    name = "psutil-5.4.3";
+    name = "psutil-5.4.5";
     buildInputs = with self; [];
     doCheck = false;
     propagatedBuildInputs = with self; [];
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/e2/e1/600326635f97fee89bf8426fef14c5c29f4849c79f68fd79f433d8c1bd96/psutil-5.4.3.tar.gz";
-      sha256 = "e2467e9312c2fa191687b89ff4bc2ad8843be4af6fb4dc95a7cc5f7d7a327b18";
+      url = "https://files.pythonhosted.org/packages/14/a2/8ac7dda36eac03950ec2668ab1b466314403031c83a95c5efc81d2acf163/psutil-5.4.5.tar.gz";
+      sha256 = "ebe293be36bb24b95cdefc5131635496e88b17fabbcf1e4bc9b5c01f5e489cfe";
     };
     meta = {
       license = [ pkgs.lib.licenses.bsdOriginal ];
diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ pastedeploy==1.5.2
 pastescript==2.0.2
 pathlib2==2.3.0
 peppercorn==0.5
-psutil==5.4.3
+psutil==5.4.5
 psycopg2==2.7.4
 py-bcrypt==0.4
 pycrypto==2.6.1