diff --git a/java/zookeeperdemo/pom.xml b/java/zookeeperdemo/pom.xml
index f9e523a..2481763 100644
--- a/java/zookeeperdemo/pom.xml
+++ b/java/zookeeperdemo/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
         </dependency>
 
         <dependency>