diff --git a/yt_dlp/networking/_websockets.py b/yt_dlp/networking/_websockets.py
index d808213da4..8b8dd180e4 100644
--- a/yt_dlp/networking/_websockets.py
+++ b/yt_dlp/networking/_websockets.py
@@ -47,6 +47,12 @@
 if urllib3_version and urllib3_version >= (1, 26, 17):
     urllib3_supported = True
 
+
+# Disable apply_mask C implementation
+import websockets.frames
+from websockets.utils import apply_mask
+websockets.frames.apply_mask = apply_mask
+
 import websockets.sync.client
 from websockets.uri import parse_uri