diff --git a/Gemfile b/Gemfile
index 9a33d65..dda0f98 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,14 +8,14 @@ source "https://rubygems.org"
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem "jekyll", "~> 3.8.5"
+gem "jekyll", "~> 4.0"
 
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 #gem "minima", "~> 2.0"
 
 # Web editor for the Jekyll site
-gem "jekyll-admin", group: :jekyll_plugins
+#gem "jekyll-admin", group: :jekyll_plugins
 gem "liquid-c"
 
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
diff --git a/Gemfile.lock b/Gemfile.lock
index 64ee238..4223d7f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,14 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.2.1)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-    addressable (2.5.2)
+    addressable (2.6.0)
       public_suffix (>= 2.0.2, < 4.0)
-    backports (3.12.0)
     colorator (1.1.0)
     concurrent-ruby (1.1.5)
     em-websocket (0.5.1)
@@ -17,57 +11,46 @@ GEM
     eventmachine (1.2.7)
     faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
-    ffi (1.10.0)
+    ffi (1.11.1)
     forwardable-extended (2.6.0)
-    gemoji (3.0.0)
-    html-pipeline (2.10.0)
-      activesupport (>= 2)
-      nokogiri (>= 1.4)
     http_parser.rb (0.6.0)
-    i18n (0.9.5)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
-    jekyll (3.8.5)
+    jekyll (4.0.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
-      i18n (~> 0.7)
-      jekyll-sass-converter (~> 1.0)
+      i18n (>= 0.9.5, < 2)
+      jekyll-sass-converter (~> 2.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 1.14)
+      kramdown (~> 2.1)
+      kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
       mercenary (~> 0.3.3)
       pathutil (~> 0.9)
-      rouge (>= 1.7, < 4)
+      rouge (~> 3.0)
       safe_yaml (~> 1.0)
-    jekyll-admin (0.8.1)
-      addressable (~> 2.4)
-      jekyll (~> 3.3)
-      sinatra (~> 1.4)
-      sinatra-contrib (~> 1.4)
-    jekyll-archives (2.1.1)
-      jekyll (>= 2.4)
-    jekyll-compose (0.9.0)
-      jekyll (~> 3.0)
-    jekyll-data (1.0.0)
-      jekyll (~> 3.3)
-    jekyll-feed (0.11.0)
-      jekyll (~> 3.3)
+      terminal-table (~> 1.8)
+    jekyll-archives (2.2.1)
+      jekyll (>= 3.6, < 5.0)
+    jekyll-compose (0.11.0)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-feed (0.12.1)
+      jekyll (>= 3.7, < 5.0)
     jekyll-gist (1.5.0)
       octokit (~> 4.2)
-    jekyll-include-cache (0.1.0)
-      jekyll (~> 3.3)
+    jekyll-include-cache (0.2.0)
+      jekyll (>= 3.7, < 5.0)
     jekyll-paginate (1.1.0)
-    jekyll-sass-converter (1.5.2)
-      sass (~> 3.4)
-    jekyll-sitemap (1.2.0)
-      jekyll (~> 3.3)
-    jekyll-watch (2.1.2)
+    jekyll-sass-converter (2.0.0)
+      sassc (> 2.0.1, < 3.0)
+    jekyll-sitemap (1.3.1)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
-    jemoji (0.10.2)
-      gemoji (~> 3.0)
-      html-pipeline (~> 2.2)
-      jekyll (~> 3.0)
-    kramdown (1.17.0)
+    kramdown (2.1.0)
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
     liquid (4.0.3)
     liquid-c (4.0.0)
       liquid (>= 3.0.0)
@@ -76,67 +59,39 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
-    minimal-mistakes-jekyll (4.15.2)
-      jekyll (~> 3.7)
-      jekyll-data (~> 1.0)
-      jekyll-feed (~> 0.10)
+    minimal-mistakes-jekyll (4.16.6)
+      jekyll (>= 3.6, < 5.0)
+      jekyll-feed (~> 0.1)
       jekyll-gist (~> 1.5)
       jekyll-include-cache (~> 0.1)
       jekyll-paginate (~> 1.1)
-      jekyll-sitemap (~> 1.2)
-      jemoji (~> 0.10)
-    minitest (5.11.3)
-    multi_json (1.13.1)
-    multipart-post (2.0.0)
-    nokogiri (1.10.1)
-      mini_portile2 (~> 2.4.0)
-    octokit (4.13.0)
+      jekyll-sitemap (~> 1.3)
+    multipart-post (2.1.1)
+    octokit (4.14.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
-    rack (1.6.11)
-    rack-protection (1.5.5)
-      rack
-    rack-test (1.1.0)
-      rack (>= 1.0, < 3)
+    public_suffix (3.1.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    rouge (3.3.0)
+    rouge (3.9.0)
     ruby_dep (1.5.0)
     safe_yaml (1.0.5)
-    sass (3.7.3)
-      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 (0.8.1)
-      addressable (>= 2.3.5, < 2.6)
-      faraday (~> 0.8, < 1.0)
-    sinatra (1.4.8)
-      rack (~> 1.5)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
-    sinatra-contrib (1.4.7)
-      backports (>= 2.0)
-      multi_json
-      rack-protection
-      rack-test
-      sinatra (~> 1.4.0)
-      tilt (>= 1.3, < 3)
-    thread_safe (0.3.6)
-    tilt (2.0.9)
-    tzinfo (1.2.5)
-      thread_safe (~> 0.1)
+    sassc (2.1.0)
+      ffi (~> 1.9)
+    sawyer (0.8.2)
+      addressable (>= 2.3.5)
+      faraday (> 0.8, < 2.0)
+    terminal-table (1.8.0)
+      unicode-display_width (~> 1.1, >= 1.1.1)
+    unicode-display_width (1.6.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (~> 3.8.5)
-  jekyll-admin
+  jekyll (~> 4.0)
   jekyll-archives
   jekyll-compose
   jekyll-feed (~> 0.6)
@@ -147,4 +102,4 @@ DEPENDENCIES
   tzinfo-data
 
 BUNDLED WITH
-   2.0.1
+   2.0.2