diff --git a/pkgs/development/python-modules/specfile/default.nix b/pkgs/development/python-modules/specfile/default.nix
index ce46f03eea0f..e17d9f361951 100644
--- a/pkgs/development/python-modules/specfile/default.nix
+++ b/pkgs/development/python-modules/specfile/default.nix
@@ -10,16 +10,16 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "specfile";
-  version = "0.37.1";
+  version = "0.38.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "packit";
     repo = "specfile";
-    tag = version;
-    hash = "sha256-phzvQs49AC9SbmcQHWprfjHssF0ughDJ9KKVnUEB/gg=";
+    tag = finalAttrs.version;
+    hash = "sha256-cqHQIzgxfWHSDIIx72RIwt0o3MEJHXRzMNSgQ0VCWms=";
   };
 
   build-system = [
@@ -46,8 +46,8 @@ buildPythonPackage rec {
   meta = {
     description = "Library for parsing and manipulating RPM spec files";
     homepage = "https://github.com/packit/specfile";
-    changelog = "https://github.com/packit/specfile/blob/${src.tag}/CHANGELOG.md";
+    changelog = "https://github.com/packit/specfile/blob/${finalAttrs.src.tag}/CHANGELOG.md";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})