diff --git a/Gemfile.lock b/Gemfile.lock
index 9364e73..8c3b953 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     backports (3.11.4)
     coffee-script (2.4.1)
       coffee-script-source
@@ -18,18 +18,20 @@ GEM
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
     concurrent-ruby (1.0.5)
-    dnsruby (1.61.2)
-      addressable (~> 2.5)
+    dnsruby (1.61.9)
+      simpleidn (~> 0.1)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
-    ethon (0.11.0)
-      ffi (>= 1.3.0)
+    ethon (0.15.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
-    faraday (0.15.3)
-      multipart-post (>= 1.2, < 3)
-    ffi (1.9.25)
+    faraday (2.6.0)
+      faraday-net_http (>= 2.0, < 3.1)
+      ruby2_keywords (>= 0.0.4)
+    faraday-net_http (3.0.0)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
     gemoji (3.0.0)
     github-pages (192)
@@ -221,11 +223,11 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.11.3)
     multi_json (1.13.1)
-    multipart-post (2.0.0)
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
-    octokit (4.12.0)
-      sawyer (~> 0.8.0, >= 0.5.3)
+    octokit (4.25.1)
+      faraday (>= 1, < 3)
+      sawyer (~> 0.9)
     parallel (1.12.1)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
@@ -241,6 +243,7 @@ GEM
     rouge (2.2.1)
     ruby-enum (0.7.2)
       i18n
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
     rubyzip (1.2.2)
     safe_yaml (1.0.4)
@@ -249,9 +252,11 @@ GEM
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    sawyer (0.8.1)
-      addressable (>= 2.3.5, < 2.6)
-      faraday (~> 0.8, < 1.0)
+    sawyer (0.9.2)
+      addressable (>= 2.3.5)
+      faraday (>= 0.17.3, < 3)
+    simpleidn (0.2.1)
+      unf (~> 0.1.4)
     sinatra (1.4.8)
       rack (~> 1.5)
       rack-protection (~> 1.4)
@@ -267,10 +272,13 @@ GEM
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    typhoeus (1.3.0)
+    typhoeus (1.4.0)
       ethon (>= 0.9.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.8.2)
     unicode-display_width (1.4.0)
     yell (2.0.7)