diff --git a/web3/_utils/module_testing/module_testing_utils.py b/web3/_utils/module_testing/module_testing_utils.py
index 0cac3c6fec..031736823e 100644
--- a/web3/_utils/module_testing/module_testing_utils.py
+++ b/web3/_utils/module_testing/module_testing_utils.py
@@ -191,7 +191,7 @@ def __init__(
         messages: Optional[Collection[bytes]] = None,
         raise_exception: Optional[Exception] = None,
     ) -> None:
-        self.queue = asyncio.Queue[bytes]()
+        self.queue = asyncio.Queue()  # type: ignore  # py38 issue
         for msg in messages or []:
             self.queue.put_nowait(msg)
         self.raise_exception = raise_exception