diff --git a/pkgs/development/python-modules/pure-protobuf/default.nix b/pkgs/development/python-modules/pure-protobuf/default.nix
index 2a7082049703..ed413f8d8c95 100644
--- a/pkgs/development/python-modules/pure-protobuf/default.nix
+++ b/pkgs/development/python-modules/pure-protobuf/default.nix
@@ -4,18 +4,20 @@
 , fetchFromGitHub
 , poetry-core
 , poetry-dynamic-versioning
-, pydantic
+, typing-extensions
 , pytestCheckHook
 , pytest-benchmark
-, typing-extensions
+, pytest-cov
+, pydantic
 }:
 
 buildPythonPackage rec {
   pname = "pure-protobuf";
-  version = "3.0.1";  # Komikku not launching w/ 3.0.0, #280551
+  version = "3.0.1";
 
   format = "pyproject";
-  disabled = pythonOlder "3.7";
+  # < 3.10 requires get-annotations which isn't packaged yet
+  disabled = pythonOlder "3.10";
 
   src = fetchFromGitHub {
     owner = "eigenein";
@@ -24,13 +26,10 @@ buildPythonPackage rec {
     hash = "sha256-sGKnta+agrpJkQB0twFkqRreD5WB2O/06g75N0ic4mc=";
   };
 
-  postPatch = ''
-    sed -i "/addopts =/d" pyproject.toml
-  '';
-
   build-system = [
     poetry-core
     poetry-dynamic-versioning
+    typing-extensions
   ];
 
   dependencies = [
@@ -41,6 +40,7 @@ buildPythonPackage rec {
     pydantic
     pytestCheckHook
     pytest-benchmark
+    pytest-cov
   ];
 
   pytestFlagsArray = [