diff --git a/Gemfile.lock b/Gemfile.lock
index a9ac67b..76975a9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -164,7 +164,7 @@ GEM
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.37)
-    uglifier (2.1.2)
+    uglifier (2.2.0)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)
     validates_formatting_of (0.8.0)