diff --git a/danmu/danmaku/cc.py b/danmu/danmaku/cc.py
index d9404a7..7456650 100644
--- a/danmu/danmaku/cc.py
+++ b/danmu/danmaku/cc.py
@@ -249,7 +249,7 @@ class CC:
     s = CC_Init()
 
     heartbeatInterval = 30
-    heartbeats = s.get_beat()
+    heartbeat = s.get_beat()
 
     @staticmethod
     async def get_ws_info(url):
diff --git a/danmu/danmaku/egame.py b/danmu/danmaku/egame.py
index 36e7f57..d03bee3 100644
--- a/danmu/danmaku/egame.py
+++ b/danmu/danmaku/egame.py
@@ -5,7 +5,7 @@ import re
 
 
 class eGame:
-    heartbeats = b'\x00\x00\x00\x12\x00\x12\x00\x01\x00\x07\x00\x00\x00\x01\x00\x00\x00\x00'
+    heartbeat = b'\x00\x00\x00\x12\x00\x12\x00\x01\x00\x07\x00\x00\x00\x01\x00\x00\x00\x00'
     heartbeatInterval = 60
 
     @staticmethod
@@ -35,7 +35,7 @@ class eGame:
                 headerbuf = struct.pack('!ihhhihh', 18 + len(bodybuf), 18, 1, 1, 0, 0, 0)
                 data = headerbuf + bodybuf
                 reg_datas.append(data)
-                reg_datas.append(eGame.heartbeats)
+                reg_datas.append(eGame.heartbeat)
 
         return 'wss://barragepush.egame.qq.com/sub', reg_datas
 
diff --git a/danmu/danmaku/huajiao.py b/danmu/danmaku/huajiao.py
index af73f8a..a074006 100644
--- a/danmu/danmaku/huajiao.py
+++ b/danmu/danmaku/huajiao.py
@@ -9,7 +9,7 @@ import time
 
 class HuaJiao:
 
-    heartbeats = b'\x00\x00\x00\x00'
+    heartbeat = b'\x00\x00\x00\x00'
     ws_url = 'wss://bridge.huajiao.com'
 
     def __init__(self, rid=None):
diff --git a/danmu/danmaku/kuaishou.py b/danmu/danmaku/kuaishou.py
index 9102b4b..7ec496d 100644
--- a/danmu/danmaku/kuaishou.py
+++ b/danmu/danmaku/kuaishou.py
@@ -8,7 +8,7 @@ import re
 
 
 class KuaiShou:
-    heartbeats = b'\x08\x01\x1A\x07\x08'  # 发送心跳可固定
+    heartbeat = b'\x08\x01\x1A\x07\x08'  # 发送心跳可固定
     heartbeatInterval = 20
 
     @staticmethod