diff --git a/sdk/webpubsub/azure-messaging-webpubsubservice/samples/get_client_access_token_async.py b/sdk/webpubsub/azure-messaging-webpubsubservice/samples/get_client_access_token_async.py
index 792f209fec34..e03d5cf3d213 100644
--- a/sdk/webpubsub/azure-messaging-webpubsubservice/samples/get_client_access_token_async.py
+++ b/sdk/webpubsub/azure-messaging-webpubsubservice/samples/get_client_access_token_async.py
@@ -59,5 +59,4 @@ async def main():
         print('token by access key(async): {}'.format(token_key_async))
 
 if __name__ == '__main__':
-    loop = asyncio.get_event_loop()
-    loop.run_until_complete(main())
+    asyncio.run(main())