diff --git a/Gemfile.lock b/Gemfile.lock
index 7daaf46..37f3e83 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,23 +15,23 @@ GEM
     colorator (0.1)
     ethon (0.9.0)
       ffi (>= 1.3.0)
-    execjs (2.6.0)
+    execjs (2.7.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
     ffi (1.9.10)
     gemoji (2.1.0)
-    github-pages (78)
+    github-pages (82)
       github-pages-health-check (= 1.1.0)
-      jekyll (= 3.0.5)
+      jekyll (= 3.1.6)
       jekyll-coffeescript (= 1.0.1)
       jekyll-feed (= 0.5.1)
       jekyll-gist (= 1.4.0)
-      jekyll-github-metadata (= 1.11.1)
+      jekyll-github-metadata (= 2.0.0)
       jekyll-mentions (= 1.1.2)
       jekyll-paginate (= 1.1.0)
       jekyll-redirect-from (= 0.10.0)
       jekyll-sass-converter (= 1.3.0)
-      jekyll-seo-tag (= 1.4.0)
+      jekyll-seo-tag (= 2.0.0)
       jekyll-sitemap (= 0.10.0)
       jemoji (= 0.6.2)
       kramdown (= 1.10.0)
@@ -50,7 +50,7 @@ GEM
       activesupport (>= 2, < 5)
       nokogiri (>= 1.4)
     i18n (0.7.0)
-    jekyll (3.0.5)
+    jekyll (3.1.6)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
@@ -64,7 +64,8 @@ GEM
     jekyll-feed (0.5.1)
     jekyll-gist (1.4.0)
       octokit (~> 4.2)
-    jekyll-github-metadata (1.11.1)
+    jekyll-github-metadata (2.0.0)
+      jekyll (~> 3.1)
       octokit (~> 4.0)
     jekyll-mentions (1.1.2)
       html-pipeline (~> 2.3)
@@ -74,8 +75,8 @@ GEM
       jekyll (>= 2.0)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
-    jekyll-seo-tag (1.4.0)
-      jekyll (~> 3.0)
+    jekyll-seo-tag (2.0.0)
+      jekyll (~> 3.1)
     jekyll-sitemap (0.10.0)
     jekyll-watch (1.4.0)
       listen (~> 3.0, < 3.1)
@@ -91,14 +92,16 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.0.0)
-    minitest (5.8.4)
+    mini_portile2 (2.1.0)
+    minitest (5.9.0)
     multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
+    nokogiri (1.6.8)
+      mini_portile2 (~> 2.1.0)
+      pkg-config (~> 1.1.7)
     octokit (4.3.0)
       sawyer (~> 0.7.0, >= 0.5.3)
+    pkg-config (1.1.7)
     public_suffix (1.5.3)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
@@ -110,7 +113,7 @@ GEM
     sawyer (0.7.0)
       addressable (>= 2.3.5, < 2.5)
       faraday (~> 0.8, < 0.10)
-    terminal-table (1.5.2)
+    terminal-table (1.6.0)
     therubyracer (0.12.2)
       libv8 (~> 3.16.14.0)
       ref
@@ -130,4 +133,4 @@ DEPENDENCIES
   therubyracer
 
 BUNDLED WITH
-   1.12.3
+   1.12.5