diff --git a/Gemfile.lock b/Gemfile.lock
index 6077896b..3111c6b4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,13 +21,13 @@ GEM
     ffi (1.9.10)
     ffi (1.9.10-x64-mingw32)
     gemoji (2.1.0)
-    github-pages (82)
+    github-pages (84)
       github-pages-health-check (= 1.1.0)
       jekyll (= 3.1.6)
       jekyll-coffeescript (= 1.0.1)
       jekyll-feed (= 0.5.1)
       jekyll-gist (= 1.4.0)
-      jekyll-github-metadata (= 2.0.0)
+      jekyll-github-metadata (= 2.0.2)
       jekyll-mentions (= 1.1.2)
       jekyll-paginate (= 1.1.0)
       jekyll-redirect-from (= 0.10.0)
@@ -35,7 +35,7 @@ GEM
       jekyll-seo-tag (= 2.0.0)
       jekyll-sitemap (= 0.10.0)
       jemoji (= 0.6.2)
-      kramdown (= 1.10.0)
+      kramdown (= 1.11.1)
       liquid (= 3.0.6)
       listen (= 3.0.6)
       mercenary (~> 0.3)
@@ -65,7 +65,7 @@ GEM
     jekyll-feed (0.5.1)
     jekyll-gist (1.4.0)
       octokit (~> 4.2)
-    jekyll-github-metadata (2.0.0)
+    jekyll-github-metadata (2.0.2)
       jekyll (~> 3.1)
       octokit (~> 4.0)
     jekyll-mentions (1.1.2)
@@ -86,7 +86,7 @@ GEM
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
     json (1.8.3)
-    kramdown (1.10.0)
+    kramdown (1.11.1)
     liquid (3.0.6)
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)