diff --git a/collections-331/pom.xml b/collections-331/pom.xml
index d7203d0..d42b1c0 100644
--- a/collections-331/pom.xml
+++ b/collections-331/pom.xml
@@ -15,7 +15,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.7</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>