diff --git a/Web/JsObFoo/Gemfile.lock b/Web/JsObFoo/Gemfile.lock
index 7b6cadd..03419bf 100644
--- a/Web/JsObFoo/Gemfile.lock
+++ b/Web/JsObFoo/Gemfile.lock
@@ -2,13 +2,12 @@ GEM
   remote: http://www.rubygems.org/
   specs:
     colorize (0.5.8)
-    execjs (1.4.0)
-      multi_json (~> 1.0)
-    multi_json (1.7.7)
+    execjs (2.8.1)
+    json (2.6.3)
     rkelly (1.0.7)
-    uglifier (2.1.2)
+    uglifier (2.7.2)
       execjs (>= 0.3.0)
-      multi_json (~> 1.0, >= 1.0.2)
+      json (>= 1.8.0)
 
 PLATFORMS
   ruby