diff --git a/sandbox/pom.xml b/sandbox/pom.xml
index f0f4c1c..0383e65 100644
--- a/sandbox/pom.xml
+++ b/sandbox/pom.xml
@@ -56,7 +56,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>3.8.1</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>