diff --git a/Gemfile.lock b/Gemfile.lock
index 7091a0e..a2d1475 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,6 +22,7 @@ GEM
     coffee-script-source (1.9.1.1)
     colorator (0.1)
     colored (1.2)
+    concurrent-ruby (1.1.10)
     ethon (0.8.1)
       ffi (>= 1.3.0)
     execjs (2.5.2)
@@ -37,7 +38,8 @@ GEM
       parallel (~> 1.3)
       typhoeus (~> 0.7)
       yell (~> 2.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (2.5.3)
       classifier-reborn (~> 2.0)
       colorator (~> 0.1)