diff --git a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/DependentTaskTest.java b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/DependentTaskTest.java
index 351be8aa65..0f6239af0e 100644
--- a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/DependentTaskTest.java
+++ b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/master/DependentTaskTest.java
@@ -217,6 +217,7 @@ public class DependentTaskTest {
         taskInstance.setId(252612);
         taskInstance.setName("C");
         taskInstance.setProcessInstanceId(10111);
+        taskInstance.setTaskJson("{}");
         taskInstance.setState(ExecutionStatus.SUBMITTED_SUCCESS);
         return taskInstance;
     }