diff --git a/Gemfile.lock b/Gemfile.lock
index 0c91a25..0b82934 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,6 +31,7 @@ GEM
       tzinfo (~> 1.1)
     arel (5.0.1.20140414130214)
     builder (3.2.2)
+    concurrent-ruby (1.1.10)
     coveralls (0.7.0)
       multi_json (~> 1.3)
       rest-client
@@ -46,7 +47,8 @@ GEM
     faraday_middleware (0.9.0)
       faraday (>= 0.7.4, < 0.9)
     hike (1.2.3)
-    i18n (0.6.11)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.1)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)