diff --git a/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java b/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java
index 8de3a65d6cb9daea5c9ff185bdf792cd316ef96b..27c5f0ce56a7bfaca61751cf8d9b8b45c2a1a84f 100644
--- a/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java
+++ b/escheduler-alert/src/main/java/cn/escheduler/alert/AlertServer.java
@@ -39,7 +39,7 @@ public class AlertServer {
 
     private AlertSender alertSender;
 
-    private static AlertServer instance;
+    private static volatile AlertServer instance;
 
     private AlertServer() {
 
diff --git a/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java b/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java
index 8329e8c18a61c1dcdd2c37c20d49ff810d60445f..ea03026d3ab5545c5a3dcdf303b2f8c8614e5ba1 100644
--- a/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java
+++ b/escheduler-common/src/main/java/cn/escheduler/common/thread/ThreadPoolExecutors.java
@@ -40,7 +40,7 @@ public class ThreadPoolExecutors {
 
     private static final Logger logger = LoggerFactory.getLogger(ThreadPoolExecutors.class);
     private static Executor executor;
-    private static ThreadPoolExecutors threadPoolExecutors;
+    private static volatile ThreadPoolExecutors threadPoolExecutors;
 
     private ThreadPoolExecutors(){}