diff --git a/tests/test_resolver_compiler.py b/tests/test_resolver_compiler.py
index f683f5d6..02c142a3 100644
--- a/tests/test_resolver_compiler.py
+++ b/tests/test_resolver_compiler.py
@@ -883,8 +883,7 @@ def test_compile_resolver_rejects_an_unknown_provider_type() -> None:
     """
 
     class _Unsupported(AbstractProvider[int]):
-        # an internal type, which may subclass
-        __module__ = "modern_di.providers.unsupported"  # ty: ignore[invalid-mutable-override]
+        __module__ = "modern_di.providers.unsupported"  # an internal type, which may subclass
         __slots__ = ()
 
     with pytest.raises(TypeError, match="no compiled resolver for provider type _Unsupported"):