diff --git a/pkgs/development/python-modules/rubicon-objc/default.nix b/pkgs/development/python-modules/rubicon-objc/default.nix
index f24e49364f0a..4fac09c2cf04 100644
--- a/pkgs/development/python-modules/rubicon-objc/default.nix
+++ b/pkgs/development/python-modules/rubicon-objc/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "rubicon-objc";
-  version = "0.4.9";
+  version = "0.5.0";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -19,8 +19,8 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "beeware";
     repo = "rubicon-objc";
-    rev = "refs/tags/v${version}";
-    hash = "sha256-jQ/q2yIXJp+X4ajcbEqxXuYtYeyZJ1xTBjSlzqLuRpg=";
+    tag = "v${version}";
+    hash = "sha256-yEsW8xHW004O7aDU4/mlbfTuF2H5UcpbNR9NACxQv3M=";
   };
 
   postPatch = ''
@@ -49,7 +49,7 @@ buildPythonPackage rec {
   meta = {
     description = "Bridge interface between Python and Objective-C";
     homepage = "https://github.com/beeware/rubicon-objc/";
-    changelog = "https://github.com/beeware/rubicon-objc/releases/tag/v${version}";
+    changelog = "https://github.com/beeware/rubicon-objc/releases/tag/${src.tag}";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ natsukium ];
     platforms = lib.platforms.darwin;