diff --git a/tests/moto_server.py b/tests/moto_server.py
index 97c68bc8..7807401a 100644
--- a/tests/moto_server.py
+++ b/tests/moto_server.py
@@ -119,7 +119,7 @@ async def _start(self):
         async with aiohttp.ClientSession() as session:
             start = time.time()
 
-            while time.time() - start < 10:
+            while time.time() - start < 20:
                 if not self._thread.is_alive():
                     break