diff --git a/ext/pom.xml b/ext/pom.xml
index a5f8916b..84cb05d6 100644
--- a/ext/pom.xml
+++ b/ext/pom.xml
@@ -69,7 +69,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
     </dependency>
   </dependencies>
   <properties>