diff --git a/CHANGES/5905.bugfix b/CHANGES/5905.bugfix
new file mode 100644
index 00000000..b667968f
--- /dev/null
+++ b/CHANGES/5905.bugfix
@@ -0,0 +1 @@
+remove deprecated loop argument for asnycio.sleep/gather calls
diff --git a/aiohttp/web.py b/aiohttp/web.py
index 557e3c3b..fd654dbb 100644
--- a/aiohttp/web.py
+++ b/aiohttp/web.py
@@ -440,9 +440,7 @@ def _cancel_tasks(
     for task in to_cancel:
         task.cancel()
 
-    loop.run_until_complete(
-        asyncio.gather(*to_cancel, loop=loop, return_exceptions=True)
-    )
+    loop.run_until_complete(asyncio.gather(*to_cancel, return_exceptions=True))
 
     for task in to_cancel:
         if task.cancelled():
diff --git a/tests/test_locks.py b/tests/test_locks.py
index 55fd2330..5f434eac 100644
--- a/tests/test_locks.py
+++ b/tests/test_locks.py
@@ -18,7 +18,7 @@ class TestEventResultOrError:
             return 1
 
         t = loop.create_task(c())
-        await asyncio.sleep(0, loop=loop)
+        await asyncio.sleep(0)
         e = Exception()
         ev.set(exc=e)
         assert (await t) == e
@@ -31,7 +31,7 @@ class TestEventResultOrError:
             return 1
 
         t = loop.create_task(c())
-        await asyncio.sleep(0, loop=loop)
+        await asyncio.sleep(0)
         ev.set()
         assert (await t) == 1
 
@@ -43,7 +43,7 @@ class TestEventResultOrError:
 
         t1 = loop.create_task(c())
         t2 = loop.create_task(c())
-        await asyncio.sleep(0, loop=loop)
+        await asyncio.sleep(0)
         ev.cancel()
         ev.set()