diff --git a/shepherd-model/pom.xml b/shepherd-model/pom.xml
index 091b6c2..6263178 100644
--- a/shepherd-model/pom.xml
+++ b/shepherd-model/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>