diff --git a/tests/test_provider.py b/tests/test_provider.py
index 6f70ea7..ffa0c50 100644
--- a/tests/test_provider.py
+++ b/tests/test_provider.py
@@ -19,7 +19,7 @@ def test_infura_http(provider):
 def test_infura_ws(provider):
     ecosystem = provider.network.ecosystem.name
     if ecosystem not in _WEBSOCKET_CAPABLE_ECOSYSTEMS:
-        assert provider.ws_uri == None
+        assert provider.ws_uri is None
         return
 
     assert provider.ws_uri.startswith("wss")