diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/id/DistributedTimeBasedIdGenerator.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/id/DistributedTimeBasedIdGenerator.java
index d91ad36c4..209ed0473 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/id/DistributedTimeBasedIdGenerator.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/engine/id/DistributedTimeBasedIdGenerator.java
@@ -68,7 +68,7 @@ public class DistributedTimeBasedIdGenerator implements IdGenerator {
             + "return dateStr .. idStr;\n";
 
     @Override
-    public synchronized String getNextId() {
+    public String getNextId() {
         String now = DateUtil.format(DateUtil.date(), "yyyyMMddHHmm");
 
         DefaultRedisScript<String> redisScript = new DefaultRedisScript<>();