diff --git a/isochrone/pom.xml b/isochrone/pom.xml
index 60a772c4f..874f4e338 100644
--- a/isochrone/pom.xml
+++ b/isochrone/pom.xml
@@ -45,7 +45,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>