diff --git a/pkgs/development/python-modules/aiorwlock/default.nix b/pkgs/development/python-modules/aiorwlock/default.nix
index 4266a374b7ee..0384a9dbce97 100644
--- a/pkgs/development/python-modules/aiorwlock/default.nix
+++ b/pkgs/development/python-modules/aiorwlock/default.nix
@@ -5,32 +5,22 @@
   pytest-asyncio,
   pytestCheckHook,
   poetry-core,
-  fetchpatch,
 }:
 
 buildPythonPackage rec {
   pname = "aiorwlock";
-  version = "1.5.0";
+  version = "1.5.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "aio-libs";
     repo = "aiorwlock";
     tag = "v${version}";
-    hash = "sha256-QwjwuXjaxE1Y+Jzn8hJXY4wKltAT8mdOM7jJ9MF+DhA=";
+    hash = "sha256-+favszX1mVuuLWqKCIk+i5frX+y2kOArAUVIAJG1otY=";
   };
 
   build-system = [ poetry-core ];
 
-  patches = [
-    # Fix cross-event-loop race condition in lock acquisition
-    # https://github.com/aio-libs/aiorwlock/pull/503
-    (fetchpatch {
-      url = "https://github.com/aio-libs/aiorwlock/commit/05608d401e4a68c69c6b9f421dd20535a9dbe523.patch?full_index=1";
-      hash = "sha256-97c6Li6nq7ViNvUIdPL8f/ATOSsmiAMaJeBFj+jPJcM=";
-    })
-  ];
-
   nativeCheckInputs = [
     pytest-asyncio
     pytestCheckHook