diff --git a/Gemfile.lock b/Gemfile.lock
index 936cf3a..f695654 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,8 @@ GEM
       activesupport (>= 2)
       nokogiri (>= 1.4)
     http_parser.rb (0.6.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.8.4)
       addressable (~> 2.4)
       colorator (~> 1.0)