diff --git a/jupiter-common/src/main/java/org/jupiter/common/concurrent/AbstractRejectedExecutionHandler.java b/jupiter-common/src/main/java/org/jupiter/common/concurrent/AbstractRejectedExecutionHandler.java
index de3dd6f0..0dbe5e67 100644
--- a/jupiter-common/src/main/java/org/jupiter/common/concurrent/AbstractRejectedExecutionHandler.java
+++ b/jupiter-common/src/main/java/org/jupiter/common/concurrent/AbstractRejectedExecutionHandler.java
@@ -62,7 +62,7 @@ public void dumpJvmInfo() {
 
                 @Override
                 public void run() {
-                    String now = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
+                    String now = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss").format(new Date());
                     String name = threadPoolName + "_" + now;
                     FileOutputStream fileOutput = null;
                     try {