diff --git a/javaedge-ad-service/ad-search/pom.xml b/javaedge-ad-service/ad-search/pom.xml
index ac9f549..a39a9b8 100644
--- a/javaedge-ad-service/ad-search/pom.xml
+++ b/javaedge-ad-service/ad-search/pom.xml
@@ -91,7 +91,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-collections4</artifactId>
-            <version>4.0</version>
+            <version>4.1</version>
         </dependency>
 
         <!-- binlog 监听与解析: https://github.com/shyiko/mysql-binlog-connector-java -->