diff --git a/Gemfile.lock b/Gemfile.lock
index 7af23e52c..2bc5786ac 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,7 +123,7 @@ GEM
       railties (>= 3.2, < 5.1)
     equalizer (0.0.11)
     erubis (2.7.0)
-    execjs (2.6.0)
+    execjs (2.7.0)
     factory_girl (4.8.0)
       activesupport (>= 3.0.0)
     fakeweb (1.3.0)
@@ -349,9 +349,8 @@ GEM
     tzinfo-data (1.2015.6)
       tzinfo (>= 1.0.0)
     uber (0.0.15)
-    uglifier (2.7.1)
-      execjs (>= 0.3.0)
-      json (>= 1.8.0)
+    uglifier (3.0.4)
+      execjs (>= 0.3.0, < 3)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.1)