diff --git a/pkgs/development/python-modules/py-ocsf-models/default.nix b/pkgs/development/python-modules/py-ocsf-models/default.nix
index c174da86b7a2..43c17483b57f 100644
--- a/pkgs/development/python-modules/py-ocsf-models/default.nix
+++ b/pkgs/development/python-modules/py-ocsf-models/default.nix
@@ -9,7 +9,7 @@
   pytestCheckHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "py-ocsf-models";
   version = "0.8.1";
   pyproject = true;
@@ -17,7 +17,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "prowler-cloud";
     repo = "py-ocsf-models";
-    tag = version;
+    tag = finalAttrs.version;
     hash = "sha256-Wtls4Ei1160hxvZjdyH0rJCQWEN/CwpxfllwgGTzMog=";
   };
 
@@ -41,8 +41,8 @@ buildPythonPackage rec {
   meta = {
     description = "OCSF models in Python using Pydantic";
     homepage = "https://github.com/prowler-cloud/py-ocsf-models";
-    changelog = "https://github.com/prowler-cloud/py-ocsf-models/releases/tag/${src.tag}";
+    changelog = "https://github.com/prowler-cloud/py-ocsf-models/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})