diff --git a/Gemfile.lock b/Gemfile.lock
index e93c25f..be35aa4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -44,10 +44,10 @@ GEM
     do_sqlite3 (0.10.15)
       data_objects (= 0.10.15)
     eventmachine (1.0.7)
-    execjs (2.4.0)
+    execjs (2.8.1)
     fastercsv (1.5.5)
     jsmin (1.0.1)
-    json (1.8.2)
+    json (1.8.6)
     json_pure (1.8.2)
     multi_json (1.11.0)
     rack (1.6.13)
@@ -75,7 +75,7 @@ GEM
       eventmachine (~> 1.0)
       rack (~> 1.0)
     tilt (1.4.1)
-    uglifier (2.7.1)
+    uglifier (2.7.2)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
     uuidtools (2.1.5)