diff --git a/Gemfile.lock b/Gemfile.lock
index b5ee011..3ba14c9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,19 +7,22 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.0)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
     colorator (1.1.0)
+    concurrent-ruby (1.2.2)
     ethon (0.10.1)
       ffi (>= 1.3.0)
     execjs (2.7.0)
-    faraday (0.10.1)
-      multipart-post (>= 1.2, < 3)
-    ffi (1.9.24)
+    faraday (2.7.4)
+      faraday-net_http (>= 2.0, < 3.1)
+      ruby2_keywords (>= 0.0.4)
+    faraday-net_http (3.0.2)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
     gemoji (2.1.0)
     github-pages (112)
@@ -70,11 +73,12 @@ GEM
       octokit (~> 4.0)
       public_suffix (~> 2.0)
       typhoeus (~> 0.7)
-    html-pipeline (2.4.2)
+    html-pipeline (2.14.3)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    i18n (0.7.0)
-    jekyll (3.6.3)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.3.1)
       addressable (~> 2.4)
       colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
@@ -146,47 +150,54 @@ GEM
       jekyll (~> 3.3)
     jekyll-titles-from-headings (0.1.3)
       jekyll (~> 3.3)
-    jekyll-watch (1.5.0)
-      listen (~> 3.0, < 3.1)
+    jekyll-watch (1.5.1)
+      listen (~> 3.0)
     jemoji (0.7.0)
       activesupport (~> 4.0)
       gemoji (~> 2.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
-    json (1.8.3)
+    json (1.8.6)
     kramdown (1.11.1)
     liquid (3.0.6)
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.8.1)
     minima (2.0.0)
-    minitest (5.10.1)
-    multipart-post (2.0.0)
+    minitest (5.18.0)
     net-dns (0.8.0)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.1.0)
-    octokit (4.6.2)
-      sawyer (~> 0.8.0, >= 0.5.3)
-    pathutil (0.14.0)
+    nokogiri (1.14.2)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    octokit (4.25.1)
+      faraday (>= 1, < 3)
+      sawyer (~> 0.9)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (2.0.4)
-    rb-fsevent (0.9.8)
-    rb-inotify (0.9.7)
-      ffi (>= 0.5.0)
+    public_suffix (2.0.5)
+    racc (1.6.2)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
     rouge (1.11.1)
-    safe_yaml (1.0.4)
-    sass (3.4.23)
-    sawyer (0.8.1)
-      addressable (>= 2.3.5, < 2.6)
-      faraday (~> 0.8, < 1.0)
+    ruby2_keywords (0.0.5)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sawyer (0.9.2)
+      addressable (>= 2.3.5)
+      faraday (>= 0.17.3, < 3)
     terminal-table (1.7.3)
       unicode-display_width (~> 1.1.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
-    tzinfo (1.2.2)
+    tzinfo (1.2.11)
       thread_safe (~> 0.1)
     unicode-display_width (1.1.2)