diff --git a/Gemfile.lock b/Gemfile.lock
index b52eb24..f6d2fc2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     amp-jekyll (1.0.2)
       fastimage (>= 1.8.0)
       jekyll (~> 3.0)
@@ -35,8 +35,6 @@ GEM
       safe_yaml (~> 1.0)
     jekyll-feed (0.10.0)
       jekyll (~> 3.3)
-    jekyll-multiple-languages-plugin (1.5.1)
-      jekyll (>= 2.0, < 4.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
     jekyll-seo-tag (2.5.0)
@@ -70,7 +68,7 @@ GEM
       octopress-hooks
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -99,7 +97,6 @@ DEPENDENCIES
   amp-jekyll
   jekyll (= 3.5.0)
   jekyll-feed (~> 0.6)
-  jekyll-multiple-languages-plugin
   jekyll-seo-tag
   jekyll-sitemap
   octopress-minify-html