diff --git a/tests/test_asgi.py b/tests/test_asgi.py
index 386ff598..86431d21 100644
--- a/tests/test_asgi.py
+++ b/tests/test_asgi.py
@@ -45,7 +45,7 @@ def setUp(self):
 
     def tearDown(self):
         if self.communicator:
-            asyncio.get_event_loop().run_until_complete(
+            asyncio.new_event_loop().run_until_complete(
                 self.communicator.wait()
             )
             
@@ -53,7 +53,7 @@ def seed_app(self, app):
         self.communicator = ApplicationCommunicator(app, self.scope)
 
     def send_input(self, payload):
-        asyncio.get_event_loop().run_until_complete(
+        asyncio.new_event_loop().run_until_complete(
             self.communicator.send_input(payload)
         )
 
@@ -61,7 +61,7 @@ def send_default_request(self):
         self.send_input({"type": "http.request", "body": b""})
 
     def get_output(self):
-        output = asyncio.get_event_loop().run_until_complete(
+        output = asyncio.new_event_loop().run_until_complete(
             self.communicator.receive_output(0)
         )
         return output
@@ -229,6 +229,6 @@ def test_qs_parsing(self):
 
                 self.assert_not_metrics(output, *metrics[i_2])
 
-            asyncio.get_event_loop().run_until_complete(
+            asyncio.new_event_loop().run_until_complete(
                 self.communicator.wait()
             )
diff --git a/tox.ini b/tox.ini
index bef57f85..40337027 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,9 +8,6 @@ deps =
     pytest-benchmark
     attrs
     {py3.9,pypy3.9}: twisted
-    # NOTE: Pinned due to https://github.com/prometheus/client_python/issues/1020
-    py3.9: asgiref==3.7
-    pypy3.9: asgiref==3.7
 commands = coverage run --parallel -m pytest {posargs}
 
 [testenv:py3.9-nooptionals]