diff --git a/workspace-provider/src/main/java/com/aliware/tianchi/CallbackServiceImpl.java b/workspace-provider/src/main/java/com/aliware/tianchi/CallbackServiceImpl.java
index 3c9299223721ec32158f3f79fcfe1b544b52647a..796eff8f8b224d7ae34643df3bd0c28ef8007df4 100644
--- a/workspace-provider/src/main/java/com/aliware/tianchi/CallbackServiceImpl.java
+++ b/workspace-provider/src/main/java/com/aliware/tianchi/CallbackServiceImpl.java
@@ -37,7 +37,7 @@ public class CallbackServiceImpl implements CallbackService {
                     }
                 }
             }
-        }, 0, 1000);
+        }, 0, 2000);
     }
 
     private Timer timer = new Timer();