diff --git a/java/baiduads-sdk-samples/pom.xml b/java/baiduads-sdk-samples/pom.xml
index e16fdb936..ed34faad2 100644
--- a/java/baiduads-sdk-samples/pom.xml
+++ b/java/baiduads-sdk-samples/pom.xml
@@ -20,7 +20,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>