diff --git a/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/handler/ProcessActivityEventHandler.java b/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/handler/ProcessActivityEventHandler.java
index fa568e4e0..de90322da 100644
--- a/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/handler/ProcessActivityEventHandler.java
+++ b/workflow-engine-spring-boot-starter/src/main/java/cn/axzo/workflow/starter/handler/ProcessActivityEventHandler.java
@@ -21,8 +21,7 @@ public interface ProcessActivityEventHandler extends Ordered {
      *
      * @param dto 入参
      */
-    default void onStart(ProcessActivityDTO dto) {
-    }
+    void onStart(ProcessActivityDTO dto);
 
     /**
      * 节点等待业务指定审批人