diff --git a/pkgs/development/python-modules/ulid-transform/default.nix b/pkgs/development/python-modules/ulid-transform/default.nix
index 171b1dc499a9..4d899fc76740 100644
--- a/pkgs/development/python-modules/ulid-transform/default.nix
+++ b/pkgs/development/python-modules/ulid-transform/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "ulid-transform";
-  version = "0.4.2";
+  version = "0.5.1";
   format = "pyproject";
 
   disabled = pythonOlder "3.9";
@@ -19,7 +19,7 @@ buildPythonPackage rec {
     owner = "bdraco";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-eRLmA/8fKfG0qEl0QbX6FziEviU34uU7SP0iyZmbku8=";
+    hash = "sha256-tgCNjvI9e7GpZKG8Q6tykU+WKBPGm0FTsw3gwUU3+so=";
   };
 
   nativeBuildInputs = [