diff --git a/aop1/pom.xml b/aop1/pom.xml
index c0b42a8..d7e9b43 100644
--- a/aop1/pom.xml
+++ b/aop1/pom.xml
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>