diff --git a/java7.1-and-data2.1/java-cohort/07-10-2021/stack/pom.xml b/java7.1-and-data2.1/java-cohort/07-10-2021/stack/pom.xml
index 9a92b19..8b8b1f1 100644
--- a/java7.1-and-data2.1/java-cohort/07-10-2021/stack/pom.xml
+++ b/java7.1-and-data2.1/java-cohort/07-10-2021/stack/pom.xml
@@ -11,7 +11,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>