diff --git a/Gemfile.lock b/Gemfile.lock
index 6f25a05..5548856 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -206,7 +206,7 @@ GEM
       rspec-mocks (~> 3.4.0)
       rspec-support (~> 3.4.0)
     rspec-support (3.4.1)
-    rubyzip (1.2.0)
+    rubyzip (1.3.0)
     sass (3.4.22)
     sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)
@@ -227,7 +227,6 @@ GEM
       websocket (~> 1.0)
     sendgrid (1.2.4)
       json
-      json
     shoulda-matchers (3.1.1)
       activesupport (>= 4.0.0)
     slop (3.6.0)