diff --git a/stubs/mock/METADATA.toml b/stubs/mock/METADATA.toml
index e6a45ed45..84a697269 100644
--- a/stubs/mock/METADATA.toml
+++ b/stubs/mock/METADATA.toml
@@ -1,2 +1,2 @@
-version = "5.1.*"
+version = "5.2.*"
 upstream_repository = "https://github.com/testing-cabal/mock"
diff --git a/stubs/mock/mock/backports.pyi b/stubs/mock/mock/backports.pyi
index b612302a2..fd968db5d 100644
--- a/stubs/mock/mock/backports.pyi
+++ b/stubs/mock/mock/backports.pyi
@@ -1,2 +1,7 @@
-from asyncio import iscoroutinefunction as iscoroutinefunction
+import sys
 from unittest import IsolatedAsyncioTestCase as IsolatedAsyncioTestCase
+
+if sys.version_info >= (3, 10):
+    from inspect import iscoroutinefunction as iscoroutinefunction
+else:
+    from asyncio import iscoroutinefunction as iscoroutinefunction
diff --git a/stubs/mock/mock/mock.pyi b/stubs/mock/mock/mock.pyi
index b0098457f..132f1ffde 100644
--- a/stubs/mock/mock/mock.pyi
+++ b/stubs/mock/mock/mock.pyi
@@ -117,7 +117,7 @@ class NonCallableMock(Base, Any):
         **kwargs: Any,
     ) -> None: ...
     def __getattr__(self, name: str) -> Any: ...
-    def _calls_repr(self, prefix: str = "Calls") -> str: ...
+    def _calls_repr(self) -> str: ...
     def assert_called_with(_mock_self, *args: Any, **kwargs: Any) -> None: ...
     def assert_not_called(_mock_self) -> None: ...
     def assert_called_once_with(_mock_self, *args: Any, **kwargs: Any) -> None: ...