diff --git a/Gemfile.lock b/Gemfile.lock
index c6f7150060..4d72be803d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.4.0)
+    addressable (2.5.0)
+      public_suffix (~> 2.0, >= 2.0.2)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -21,22 +22,28 @@ GEM
     ffi (1.9.14)
     forwardable-extended (2.6.0)
     gemoji (2.1.0)
-    github-pages (104)
+    github-pages (109)
       activesupport (= 4.2.7)
-      github-pages-health-check (= 1.2.0)
-      jekyll (= 3.3.0)
+      github-pages-health-check (= 1.3.0)
+      jekyll (= 3.3.1)
       jekyll-avatar (= 0.4.2)
       jekyll-coffeescript (= 1.0.1)
+      jekyll-default-layout (= 0.1.4)
       jekyll-feed (= 0.8.0)
       jekyll-gist (= 1.4.0)
       jekyll-github-metadata (= 2.2.0)
       jekyll-mentions (= 1.2.0)
+      jekyll-optional-front-matter (= 0.1.2)
       jekyll-paginate (= 1.1.0)
+      jekyll-readme-index (= 0.0.3)
       jekyll-redirect-from (= 0.11.0)
+      jekyll-relative-links (= 0.2.1)
       jekyll-sass-converter (= 1.3.0)
       jekyll-seo-tag (= 2.1.0)
       jekyll-sitemap (= 0.12.0)
       jekyll-swiss (= 0.4.0)
+      jekyll-theme-primer (= 0.1.1)
+      jekyll-titles-from-headings (= 0.1.2)
       jemoji (= 0.7.0)
       kramdown (= 1.11.1)
       liquid (= 3.0.6)
@@ -45,17 +52,17 @@ GEM
       minima (= 2.0.0)
       rouge (= 1.11.1)
       terminal-table (~> 1.4)
-    github-pages-health-check (1.2.0)
+    github-pages-health-check (1.3.0)
       addressable (~> 2.3)
       net-dns (~> 0.8)
       octokit (~> 4.0)
-      public_suffix (~> 1.4)
+      public_suffix (~> 2.0)
       typhoeus (~> 0.7)
     html-pipeline (2.4.2)
       activesupport (>= 2)
       nokogiri (>= 1.4)
     i18n (0.7.0)
-    jekyll (3.3.0)
+    jekyll (3.3.1)
       addressable (~> 2.4)
       colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
@@ -70,6 +77,8 @@ GEM
       jekyll (~> 3.0)
     jekyll-coffeescript (1.0.1)
       coffee-script (~> 2.2)
+    jekyll-default-layout (0.1.4)
+      jekyll (~> 3.0)
     jekyll-feed (0.8.0)
       jekyll (~> 3.3)
     jekyll-gist (1.4.0)
@@ -81,9 +90,15 @@ GEM
       activesupport (~> 4.0)
       html-pipeline (~> 2.3)
       jekyll (~> 3.0)
+    jekyll-optional-front-matter (0.1.2)
+      jekyll (~> 3.0)
     jekyll-paginate (1.1.0)
+    jekyll-readme-index (0.0.3)
+      jekyll (~> 3.0)
     jekyll-redirect-from (0.11.0)
       jekyll (>= 2.0)
+    jekyll-relative-links (0.2.1)
+      jekyll (~> 3.3)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
     jekyll-seo-tag (2.1.0)
@@ -91,6 +106,10 @@ GEM
     jekyll-sitemap (0.12.0)
       jekyll (~> 3.3)
     jekyll-swiss (0.4.0)
+    jekyll-theme-primer (0.1.1)
+      jekyll (~> 3.3)
+    jekyll-titles-from-headings (0.1.2)
+      jekyll (~> 3.3)
     jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
     jemoji (0.7.0)
@@ -116,7 +135,7 @@ GEM
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.14.0)
       forwardable-extended (~> 2.6)
-    public_suffix (1.5.3)
+    public_suffix (2.0.4)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)