diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index f2fa628ae..56aa671a2 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -216,8 +216,7 @@
 -keep class java.lang.** { *; }
 -keep class java.util.function.** { *; }
 -keep class com.sun.script.javascript.** { *; }
--keep class org.mozilla.classfile.** { *; }
--keep class org.mozilla.javascript.** { *; }
+-keep class org.mozilla.** { *; }
 -dontwarn org.mozilla.javascript.engine.RhinoScriptEngineFactory
 
 ###EPUB
diff --git a/rhino/build.gradle b/rhino/build.gradle
index ae6d5af3f..2a25cc693 100644
--- a/rhino/build.gradle
+++ b/rhino/build.gradle
@@ -35,5 +35,5 @@ android {
 }
 
 dependencies {
-    api(fileTree(dir: 'lib', include: ['rhino-1.7.13-2.jar']))
+    api(fileTree(dir: 'lib', include: ['rhino-1.7.14-2.jar']))
 }
\ No newline at end of file
diff --git a/rhino/lib/rhino-1.7.14-2.jar b/rhino/lib/rhino-1.7.14-2.jar
new file mode 100644
index 000000000..4164ac8d5
Binary files /dev/null and b/rhino/lib/rhino-1.7.14-2.jar differ
diff --git a/rhino/proguard-rules.pro b/rhino/proguard-rules.pro
index 4382bdafd..806703560 100644
--- a/rhino/proguard-rules.pro
+++ b/rhino/proguard-rules.pro
@@ -26,5 +26,4 @@
 -keep class java.lang.** { *; }
 -keep class java.util.function.** { *; }
 -keep class com.sun.script.javascript.** { *; }
--keep class org.mozilla.classfile.** { *; }
--keep class org.mozilla.javascript.** { *; }
\ No newline at end of file
+-keep class org.mozilla.** { *; }
\ No newline at end of file