diff --git a/zip/pom.xml b/zip/pom.xml
index a8fc1db..7a75e9e 100644
--- a/zip/pom.xml
+++ b/zip/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>