diff --git a/pkgs/development/python-modules/fastrlock/default.nix b/pkgs/development/python-modules/fastrlock/default.nix
index 8271bec090b2..e44639942a0d 100644
--- a/pkgs/development/python-modules/fastrlock/default.nix
+++ b/pkgs/development/python-modules/fastrlock/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "fastrlock";
-  version = "0.4";
+  version = "0.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "6abdbb35205792e2d2a8c441aaa41a613d43ee2d88b3af4fd9735ae7a5f7db6b";
+    sha256 = "9ae1a31f6e069b5f0f28ba63c594d0c952065de0a375f7b491d21ebaccc5166f";
   };
 
   meta = with stdenv.lib; {