diff --git a/tomcat9.0-source/pom.xml b/tomcat9.0-source/pom.xml
index 362ecc2d..279d6181 100644
--- a/tomcat9.0-source/pom.xml
+++ b/tomcat9.0-source/pom.xml
@@ -40,7 +40,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>