diff --git a/Gemfile.lock b/Gemfile.lock
index cc2aa27..ba15722 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,6 +59,7 @@ GEM
       ffi (~> 1.0.6)
     clipboard (0.9.7)
     coderay (0.9.7)
+    concurrent-ruby (1.1.10)
     configuration (1.2.0)
     cucumber (0.10.2)
       builder (>= 2.1.2)
@@ -95,7 +96,8 @@ GEM
     guessmethod (0.2.1)
       rake (>= 0.7)
     hirb (0.4.3)
-    i18n (0.5.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     interactive_editor (0.0.7)
       spoon (>= 0.0.1)
     irbtools (0.8.6)