diff --git a/Sources/Punchnet/SDLSuperClient.swift b/Sources/Punchnet/SDLSuperClient.swift
index 6986c8f..4700fd0 100644
--- a/Sources/Punchnet/SDLSuperClient.swift
+++ b/Sources/Punchnet/SDLSuperClient.swift
@@ -100,13 +100,19 @@ actor SDLSuperClient {
                 // --MARK: 心跳机制
                 group.addTask {
                     while true {
-                        try Task.checkCancellation()
-                        //await self.ping()
-                        try Task.checkCancellation()
-                        try await Task.sleep(nanoseconds: 5 * 1_000_000_000)
-                        try Task.checkCancellation()
+                        
+                        do {
+                            
+                            try Task.checkCancellation()
+                            //await self.ping()
+                            try Task.checkCancellation()
+                            try await Task.sleep(nanoseconds: 5 * 1_000_000_000)
+                            try Task.checkCancellation()
+                        } catch let err {
+                            NSLog("[SDLSuperClient] heartbeat cancelled")
+                            throw err
+                        }
                     }
-                    NSLog("[SDLSuperClient] heartbeat cancelled")
                 }
                 
                 try await group.waitForAll()