diff --git a/Gemfile.lock b/Gemfile.lock
index 0c0dc63..57d64b0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,6 +46,7 @@ GEM
       xpath (~> 0.1.4)
     childprocess (0.3.2)
       ffi (~> 1.0.6)
+    concurrent-ruby (1.1.10)
     cucumber (1.2.0)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
@@ -62,7 +63,8 @@ GEM
     gherkin (2.10.0)
       json (>= 1.4.6)
     hike (1.2.1)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)