diff --git a/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/core/TaskCoreTest.java b/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/core/TaskCoreTest.java
index 1a6738a8e3..da059ee85c 100644
--- a/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/core/TaskCoreTest.java
+++ b/hugegraph-server/hugegraph-test/src/main/java/org/apache/hugegraph/core/TaskCoreTest.java
@@ -552,7 +552,7 @@ public void testGremlinJobAndCancel() throws TimeoutException {
 
         HugeTask<Object> task = runGremlinJob("Thread.sleep(1000 * 10);");
 
-        sleepAWhile();
+        sleepAWhile(200 * 6);
         task = scheduler.task(task.id());
         scheduler.cancel(task);