diff --git a/sort-example/pom.xml b/sort-example/pom.xml
index 2ce9281..d75f049 100644
--- a/sort-example/pom.xml
+++ b/sort-example/pom.xml
@@ -20,7 +20,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>