diff --git a/pkgs/development/python-modules/portalocker/default.nix b/pkgs/development/python-modules/portalocker/default.nix
index eee4a1047fdd..11016043ce11 100644
--- a/pkgs/development/python-modules/portalocker/default.nix
+++ b/pkgs/development/python-modules/portalocker/default.nix
@@ -5,12 +5,12 @@
 }:
 
 buildPythonPackage rec {
-  version = "2.3.0";
+  version = "2.3.1";
   pname = "portalocker";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0k08c0qg21mwz3iqbd20ab22nq705q7cal4a1qr8qnd6ga03v4af";
+    sha256 = "5ff2e494eccd3ff1cbaba8e4defd45bc7edb8eea3908c74f6de5d40641a1ed92";
   };
 
   propagatedBuildInputs = [