diff --git a/pom.xml b/pom.xml
index e91d99b..02d1d5d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -33,7 +33,7 @@
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <scope>test</scope>
-            <version>4.11</version>
+            <version>4.13.1</version>
         </dependency>
         <dependency>
             <groupId>net.sf.jopt-simple</groupId>