diff --git a/Gemfile.lock b/Gemfile.lock
index 5a4d6c5..62d0966 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,6 +15,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     colorator (0.1)
+    concurrent-ruby (1.1.10)
     ethon (0.8.1)
       ffi (>= 1.3.0)
     execjs (2.6.0)
@@ -56,7 +57,8 @@ GEM
     httparty (0.13.7)
       json (~> 1.8)
       multi_xml (>= 0.5.2)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.0.3)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)