diff --git a/pkgs/development/python-modules/isodate/default.nix b/pkgs/development/python-modules/isodate/default.nix
index 19a643d216ac..21bcc3ed90a3 100644
--- a/pkgs/development/python-modules/isodate/default.nix
+++ b/pkgs/development/python-modules/isodate/default.nix
@@ -7,11 +7,11 @@
 
 buildPythonPackage rec {
   pname = "isodate";
-  version = "0.6.0";
+  version = "0.6.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "2e364a3d5759479cdb2d37cce6b9376ea504db2ff90252a2e5b7cc89cc9ff2d8";
+    sha256 = "SMWIHefosKDWSMsCTIBi3ITnuEDtgehkx2FP08Envek=";
   };
 
   propagatedBuildInputs = [ six ];