diff --git a/pkgs/development/python-modules/cwl-utils/default.nix b/pkgs/development/python-modules/cwl-utils/default.nix
index 3c80a158b4e2..33b057d795dc 100644
--- a/pkgs/development/python-modules/cwl-utils/default.nix
+++ b/pkgs/development/python-modules/cwl-utils/default.nix
@@ -16,7 +16,7 @@
 
 buildPythonPackage rec {
   pname = "cwl-utils";
-  version = "0.28";
+  version = "0.29";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -25,7 +25,7 @@ buildPythonPackage rec {
     owner = "common-workflow-language";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-hplpsig+phIX6WCbUV0ILcA62f5DE/yTyKfoaeumgyY=";
+    hash = "sha256-XxfeBikJcRcUCIVDAmPTtcrrgvZYrRKpjs5bmMokeeI=";
   };
 
   propagatedBuildInputs = [