diff --git a/examples/calculator/calculator2/pom.xml b/examples/calculator/calculator2/pom.xml
index dc7ea7c2..fe9ef971 100644
--- a/examples/calculator/calculator2/pom.xml
+++ b/examples/calculator/calculator2/pom.xml
@@ -29,7 +29,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.6</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>