diff --git a/code/pom.xml b/code/pom.xml
index af17f56..fc5e1e2 100644
--- a/code/pom.xml
+++ b/code/pom.xml
@@ -42,7 +42,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>