diff --git a/Gemfile.lock b/Gemfile.lock
index 029ec77..6d7ffa7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,8 +9,10 @@ GEM
       tzinfo (~> 1.1)
     coderay (1.1.1)
     colorator (0.1)
+    concurrent-ruby (1.1.10)
     ffi (1.9.10)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.1.2)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)