diff --git a/tests/test_fastapi.py b/tests/test_fastapi.py
index 7eceb5f..5cd621e 100644
--- a/tests/test_fastapi.py
+++ b/tests/test_fastapi.py
@@ -1,5 +1,6 @@
 import asyncio
 import socket
+import sys
 from typing import Any, Optional
 
 import fastapi
@@ -56,7 +57,10 @@ def dispatch_test_init(self, reg: Registry) -> str:
         self.sockets = [sock]
         self.uvicorn = uvicorn.Server(config)
         self.runner = Runner()
-        self.event = asyncio.Event()
+        if sys.version_info > (3, 8):
+            self.event = asyncio.Event()
+        else:
+            self.event = asyncio.Event(loop=self.runner.get_loop())
         return f"http://{host}:{port}"
 
     def dispatch_test_run(self):
diff --git a/tests/test_http.py b/tests/test_http.py
index 34d27ab..9271b22 100644
--- a/tests/test_http.py
+++ b/tests/test_http.py
@@ -1,5 +1,6 @@
 import asyncio
 import socket
+import sys
 from http.server import HTTPServer
 
 import dispatch.test
@@ -41,11 +42,15 @@ def dispatch_test_init(self, reg: Registry) -> str:
         host = "127.0.0.1"
         port = 0
 
-        self.aiowait = asyncio.Event()
         self.aioloop = Runner()
         self.aiohttp = Server(host, port, Dispatch(reg))
         self.aioloop.run(self.aiohttp.start())
 
+        if sys.version_info > (3, 8):
+            self.aiowait = asyncio.Event()
+        else:
+            self.aiowait = asyncio.Event(loop=self.aioloop.get_loop())
+
         return f"http://{self.aiohttp.host}:{self.aiohttp.port}"
 
     def dispatch_test_run(self):