diff --git a/simple/pom.xml b/simple/pom.xml
index 2771aea..bdd8bc8 100644
--- a/simple/pom.xml
+++ b/simple/pom.xml
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.4</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>