diff --git a/build.gradle b/build.gradle
index 0ab6c4c8..c17cb9fd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@ dependencies {
   compile group: 'org.ccil.cowan.tagsoup', name: 'tagsoup', version: '1.2.1'
   compile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '9.4.3.v20170317'
   compile group: 'org.eclipse.jetty', name: 'jetty-xml', version: '9.4.3.v20170317'
-  compile group: 'org.mozilla', name: 'rhino', version: '1.7.7.1'
+  compile group: 'org.mozilla', name: 'rhino', version: '1.7.9'
   compile group: 'xerces', name: 'xercesImpl', version: '2.11.0'
   // Potential replacement for apache-dom
   //compile group: 'xmlrpc', name: 'xmlrpc', version: '2.0.1'
diff --git a/lib/rhino-1.7.7.1.jar b/lib/rhino-1.7.7.1.jar
deleted file mode 100644
index a8b9417a..00000000
Binary files a/lib/rhino-1.7.7.1.jar and /dev/null differ
diff --git a/lib/rhino-1.7.9.jar b/lib/rhino-1.7.9.jar
new file mode 100644
index 00000000..4d353517
Binary files /dev/null and b/lib/rhino-1.7.9.jar differ
diff --git a/src/helma/main/launcher/Main.java b/src/helma/main/launcher/Main.java
index 19559e47..104ef727 100644
--- a/src/helma/main/launcher/Main.java
+++ b/src/helma/main/launcher/Main.java
@@ -50,7 +50,7 @@ public class Main {
         "jetty-util-9.4.3.v20170317.jar",
         "jetty-xml-9.4.3.v20170317.jar",
         "mail-1.4.7.jar",
-        "rhino-1.7.7.1.jar",
+        "rhino-1.7.9.jar",
         "tagsoup-1.2.1.jar",
         "xmlrpc-2.0.1.jar"
     };