diff --git a/mockserver/pom.xml b/mockserver/pom.xml
index 636ac3bf7..764f9c464 100644
--- a/mockserver/pom.xml
+++ b/mockserver/pom.xml
@@ -518,7 +518,7 @@
             <dependency>
                 <groupId>org.mozilla</groupId>
                 <artifactId>rhino</artifactId>
-                <version>1.8.1</version>
+                <version>1.9.1</version>
             </dependency>
 
             <!-- xml -->