diff --git a/build.gradle b/build.gradle
index 430d7c6d..8f22cf89 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ dependencies {
   compile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '8.1.22.v20160922'
   compile group: 'org.eclipse.jetty', name: 'jetty-xml', version: '8.1.22.v20160922'
   compile group: 'javax.mail', name: 'mail', version: '1.4.7'
-  compile group: 'org.mozilla', name: 'rhino', version: '1.7R5'
+  compile group: 'org.mozilla', name: 'rhino', version: '1.7.7.1'
   compile group: 'org.ccil.cowan.tagsoup', name: 'tagsoup', version: '1.2.1'
   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
new file mode 100644
index 00000000..a8b9417a
Binary files /dev/null and b/lib/rhino-1.7.7.1.jar differ
diff --git a/lib/rhino-1.7R5.jar b/lib/rhino-1.7R5.jar
deleted file mode 100644
index 76b6eaed..00000000
Binary files a/lib/rhino-1.7R5.jar and /dev/null differ
diff --git a/src/helma/main/launcher/Main.java b/src/helma/main/launcher/Main.java
index 5f2a94a9..6ed02900 100644
--- a/src/helma/main/launcher/Main.java
+++ b/src/helma/main/launcher/Main.java
@@ -35,7 +35,7 @@ import java.util.ArrayList;
  */
 public class Main {
     public static final String[] jars = {
-                                            "helma.jar", "rhino-1.7R5.jar",
+                                            "helma.jar", "rhino-1.7.7.1.jar",
                                             "commons-logging-1.2.jar",
                                             "xmlrpc-2.0.1.jar", "mail-1.4.7.jar", "activation-1.1.jar",
                                             "commons-fileupload-1.3.2.jar", "commons-codec-1-10.jar",