diff --git a/Gemfile.lock b/Gemfile.lock
index 9108af1..530f8ed 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,20 +6,19 @@ 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
       execjs
     coffee-script-source (1.11.1)
     colorator (1.1.0)
-    colorize (0.8.1)
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
     concurrent-ruby (1.1.4)
-    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)
@@ -86,13 +85,12 @@ GEM
     html-pipeline (2.10.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    html-proofer (3.10.2)
-      activesupport (>= 4.2, < 6.0)
+    html-proofer (3.19.2)
       addressable (~> 2.3)
-      colorize (~> 0.8)
-      mercenary (~> 0.3.2)
-      nokogiri (~> 1.9)
+      mercenary (~> 0.3)
+      nokogumbo (~> 2.0)
       parallel (~> 1.3)
+      rainbow (~> 3.0)
       typhoeus (~> 1.3)
       yell (~> 2.0)
     http_parser.rb (0.6.0)
@@ -111,11 +109,10 @@ GEM
       pathutil (~> 0.9)
       rouge (>= 1.7, < 4)
       safe_yaml (~> 1.0)
-    jekyll-admin (0.8.1)
-      addressable (~> 2.4)
-      jekyll (~> 3.3)
-      sinatra (~> 1.4)
-      sinatra-contrib (~> 1.4)
+    jekyll-admin (0.11.1)
+      jekyll (>= 3.7, < 5.0)
+      sinatra (>= 1.4)
+      sinatra-contrib (>= 1.4)
     jekyll-avatar (0.6.0)
       jekyll (~> 3.0)
     jekyll-coffeescript (1.1.1)
@@ -224,7 +221,10 @@ GEM
     multipart-post (2.0.0)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    octokit (4.13.0)
+    nokogumbo (2.0.5)
+      nokogiri (~> 1.8, >= 1.8.4)
+    octokit (4.22.0)
+      faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     parallel (1.13.0)
     pathutil (0.16.2)
@@ -235,6 +235,7 @@ GEM
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
+    rainbow (3.1.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -249,9 +250,11 @@ 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 (0.8.2)
+      addressable (>= 2.3.5)
+      faraday (> 0.8, < 2.0)
+    simpleidn (0.2.1)
+      unf (~> 0.1.4)
     sinatra (1.4.8)
       rack (~> 1.5)
       rack-protection (~> 1.4)
@@ -271,6 +274,9 @@ GEM
       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 (1.4.1)
     yell (2.0.7)