diff --git a/jackrabbit-webapp/pom.xml b/jackrabbit-webapp/pom.xml
index 65539ef8448..972d5c481a6 100644
--- a/jackrabbit-webapp/pom.xml
+++ b/jackrabbit-webapp/pom.xml
@@ -104,7 +104,7 @@
     <dependency>
       <groupId>org.htmlunit</groupId>
       <artifactId>htmlunit</artifactId>
-      <version>4.19.0</version>
+      <version>4.21.0</version>
       <scope>test</scope>
       <exclusions>
         <exclusion>