diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d8a95a70d..3aa579aa4 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,7 +18,7 @@ jobs:
     - name: Install Python 3.x
       uses: actions/setup-python@v2
       with:
-        python-version: "3.9.6"
+        python-version: "3.x"
     - name: Install tox
       run: pip install tox
     - name: Run tests with coverage
@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ["3.7", "3.8", "3.9.6", "3.10"]
+        python: ["3.7", "3.8", "3.9", "3.10"]
     steps:
     - name: Check out repository
       uses: actions/checkout@v2
diff --git a/src/websockets/legacy/protocol.py b/src/websockets/legacy/protocol.py
index a52f9f71d..3340c33be 100644
--- a/src/websockets/legacy/protocol.py
+++ b/src/websockets/legacy/protocol.py
@@ -750,7 +750,7 @@ async def close(self, code: int = 1000, reason: str = "") -> None:
                 self.write_close_frame(Close(code, reason)),
                 self.close_timeout,
                 **loop_if_py_lt_38(self.loop),
-            )
+            )  # type: ignore  # remove when removing loop_if_py_lt_38
         except asyncio.TimeoutError:
             # If the close frame cannot be sent because the send buffers
             # are full, the closing handshake won't complete anyway.
@@ -771,7 +771,7 @@ async def close(self, code: int = 1000, reason: str = "") -> None:
                 self.transfer_data_task,
                 self.close_timeout,
                 **loop_if_py_lt_38(self.loop),
-            )
+            )  # type: ignore  # remove when removing loop_if_py_lt_38
         except (asyncio.TimeoutError, asyncio.CancelledError):
             pass
 
@@ -1250,7 +1250,7 @@ async def keepalive_ping(self) -> None:
                             pong_waiter,
                             self.ping_timeout,
                             **loop_if_py_lt_38(self.loop),
-                        )
+                        )  # type: ignore  # remove when removing loop_if_py_lt_38
                         self.logger.debug("% received keepalive pong")
                     except asyncio.TimeoutError:
                         if self.debug:
@@ -1365,7 +1365,7 @@ async def wait_for_connection_lost(self) -> bool:
                     asyncio.shield(self.connection_lost_waiter),
                     self.close_timeout,
                     **loop_if_py_lt_38(self.loop),
-                )
+                )  # type: ignore  # remove when removing loop_if_py_lt_38
             except asyncio.TimeoutError:
                 pass
         # Re-check self.connection_lost_waiter.done() synchronously because
diff --git a/tests/legacy/test_client_server.py b/tests/legacy/test_client_server.py
index fea2b4178..4eb8229b2 100644
--- a/tests/legacy/test_client_server.py
+++ b/tests/legacy/test_client_server.py
@@ -1454,6 +1454,7 @@ async def run_client():
                     await server_ws.close()
                     with self.assertRaises(ConnectionClosed):
                         await ws.recv()
+                    pass  # work around bug in coverage
                 else:
                     # Exit block with an exception.
                     raise Exception("BOOM!")