diff --git a/CHANGES/8747.misc.rst b/CHANGES/8747.misc.rst
new file mode 120000
index 00000000000..9eb648d0e2b
--- /dev/null
+++ b/CHANGES/8747.misc.rst
@@ -0,0 +1 @@
+8736.misc.rst
\ No newline at end of file
diff --git a/aiohttp/http_websocket.py b/aiohttp/http_websocket.py
index ab1af44da7b..db0cb429d83 100644
--- a/aiohttp/http_websocket.py
+++ b/aiohttp/http_websocket.py
@@ -94,10 +94,12 @@ class WSMsgType(IntEnum):
     error = ERROR
 
 
-MESSAGE_TYPES_WITH_CONTENT: Final = (
-    WSMsgType.BINARY,
-    WSMsgType.TEXT,
-    WSMsgType.CONTINUATION,
+MESSAGE_TYPES_WITH_CONTENT: Final = frozenset(
+    {
+        WSMsgType.BINARY,
+        WSMsgType.TEXT,
+        WSMsgType.CONTINUATION,
+    }
 )
 
 WS_KEY: Final[bytes] = b"258EAFA5-E914-47DA-95CA-C5AB0DC85B11"