2 files changed, 2 insertions, 2 deletions
diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py
index e40e7999b64..5691d4250ac 100644
--- a/Lib/test/test_asyncio/test_base_events.py
+++ b/Lib/test/test_asyncio/test_base_events.py
@@ -2096,7 +2096,7 @@ class BaseLoopSockSendfileTests(test_utils.TestCase):
 
     def test_nonbinary_file(self):
         sock = self.make_socket()
-        with open(os_helper.TESTFN, 'r') as f:
+        with open(os_helper.TESTFN, encoding="utf-8") as f:
             with self.assertRaisesRegex(ValueError, "binary mode"):
                 self.run_loop(self.loop.sock_sendfile(sock, f))
 
diff --git a/Lib/test/test_asyncio/test_events.py b/Lib/test/test_asyncio/test_events.py
index 6523a79b4a6..5511407ba53 100644
--- a/Lib/test/test_asyncio/test_events.py
+++ b/Lib/test/test_asyncio/test_events.py
@@ -1349,7 +1349,7 @@ class EventLoopTestsMixin:
 
         rpipe, wpipe = os.pipe()
         rpipeobj = io.open(rpipe, 'rb', 1024)
-        wpipeobj = io.open(wpipe, 'w', 1024)
+        wpipeobj = io.open(wpipe, 'w', 1024, encoding="utf-8")
 
         async def connect():
             read_transport, _ = await loop.connect_read_pipe(