diff --git a/Gemfile.lock b/Gemfile.lock
index 069311d..40bf1c3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,6 +16,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     colorator (0.1)
+    concurrent-ruby (1.1.10)
     emoji_for_jekyll (0.2.2)
     ethon (0.10.1)
       ffi (>= 1.3.0)
@@ -54,7 +55,8 @@ GEM
     html-pipeline (2.4.2)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.1.6)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)