diff --git a/examples/ch-optimize/simple-parent/pom.xml b/examples/ch-optimize/simple-parent/pom.xml
index 97c645ae..55974fb4 100644
--- a/examples/ch-optimize/simple-parent/pom.xml
+++ b/examples/ch-optimize/simple-parent/pom.xml
@@ -104,7 +104,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>