diff --git a/pkgs/development/python-modules/pid/default.nix b/pkgs/development/python-modules/pid/default.nix
index 2fad490bc426..e934ea4577b4 100644
--- a/pkgs/development/python-modules/pid/default.nix
+++ b/pkgs/development/python-modules/pid/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "pid";
-  version = "3.0.3";
+  version = "3.0.4";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0z9w99m1vppppj2ypgm0flslgwcjjzlr7x3m62sccavgbg1n2nwj";
+    sha256 = "0e33670e83f6a33ebb0822e43a609c3247178d4a375ff50a4689e266d853eb66";
   };
 
   buildInputs = [ nose ];