diff --git a/pkgs/development/python-modules/async-interrupt/default.nix b/pkgs/development/python-modules/async-interrupt/default.nix
index f166eff8db1a..1d96a8cbd61f 100644
--- a/pkgs/development/python-modules/async-interrupt/default.nix
+++ b/pkgs/development/python-modules/async-interrupt/default.nix
@@ -4,33 +4,30 @@
   fetchFromGitHub,
   poetry-core,
   pytest-asyncio,
+  pytest-cov-stub,
   pytestCheckHook,
   pythonOlder,
 }:
 
 buildPythonPackage rec {
   pname = "async-interrupt";
-  version = "1.1.2";
-  format = "pyproject";
+  version = "1.2.0";
+  pyproject = true;
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
     owner = "bdraco";
     repo = "async_interrupt";
     rev = "refs/tags/v${version}";
-    hash = "sha256-CFCWlIx4iAG6gW2ORRYfZpFWRvjukqdcR2yg6NjVqps=";
+    hash = "sha256-opV5h3aLDDpjlRZRZ9OnrPjUOf/i7g+B9T6msk8wtgI=";
   };
 
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace " --cov=async_interrupt --cov-report=term-missing:skip-covered" ""
-  '';
-
   nativeBuildInputs = [ poetry-core ];
 
   nativeCheckInputs = [
     pytest-asyncio
+    pytest-cov-stub
     pytestCheckHook
   ];