diff --git a/Gemfile.lock b/Gemfile.lock
index e57e0ed..b68cbd8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,6 +64,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.2.0)
+    concurrent-ruby (1.1.10)
     dropbox (1.3.0)
       json (>= 1.2.0)
       multipart-post (>= 1.1.0)
@@ -77,7 +78,8 @@ GEM
     httparty (0.8.3)
       multi_json (~> 1.0)
       multi_xml
-    i18n (0.6.1)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.0.1)
       railties (>= 3.2.0, < 5.0)
@@ -132,7 +134,6 @@ GEM
       tilt (~> 1.3)
     sendgrid (1.0.1)
       json
-      json
     sprockets (2.2.2)
       hike (~> 1.2)
       multi_json (~> 1.0)