diff --git a/Gemfile.lock b/Gemfile.lock
index b3c5ae5..39118d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,6 +13,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     colorator (1.1.0)
+    concurrent-ruby (1.1.10)
     ethon (0.9.0)
       ffi (>= 1.3.0)
     execjs (2.7.0)
@@ -53,7 +54,8 @@ GEM
     html-pipeline (2.4.2)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.2.1)
       colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
@@ -132,7 +134,6 @@ GEM
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
     unicode-display_width (1.1.1)
-    wdm (0.1.1)
 
 PLATFORMS
   ruby
@@ -141,7 +142,6 @@ PLATFORMS
 DEPENDENCIES
   github-pages
   jekyll-feed
-  wdm (~> 0.1.0)
 
 BUNDLED WITH
    1.12.5