diff --git a/parent/pom.xml b/parent/pom.xml
index 74325b8ba1..cf5a88145a 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -217,7 +217,7 @@
             <dependency>
                 <groupId>org.htmlunit</groupId>
                 <artifactId>htmlunit</artifactId>
-                <version>4.21.0</version>
+                <version>5.1.0</version>
                 <scope>test</scope>
             </dependency>
             <dependency>