diff --git a/pom.xml b/pom.xml
index 2afcdef6..8540a392 100644
--- a/pom.xml
+++ b/pom.xml
@@ -105,7 +105,7 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/ma
     <dependency>
         <groupId>org.mozilla</groupId>
         <artifactId>rhino</artifactId>
-        <version>1.8.1</version>
+        <version>1.9.1</version>
     </dependency>
     <dependency>
         <groupId>org.mozilla</groupId>