diff --git a/Gemfile b/Gemfile
index 3963aba86..ecaaebd22 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 gem 'wdm', '>= 0.1.0' if Gem.win_platform?
 
-gem 'jekyll-admin', group: :jekyll_plugins
+gem 'jekyll-admin', '>= 0.11.1', group: :jekyll_plugins
 
 group :development, :test do
   gem 'jekyll', '~> 3.8.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 212e8e8b6..e46119f55 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,32 +10,31 @@ GEM
       public_suffix (>= 2.0.2, < 4.0)
     autoprefixer-rails (9.1.4)
       execjs
-    backports (3.11.4)
+    base64 (0.3.0)
     bootstrap (4.1.3)
       autoprefixer-rails (>= 6.0.3)
       popper_js (>= 1.12.9, < 2)
       sass (>= 3.5.2)
     colorator (1.1.0)
-    concurrent-ruby (1.0.5)
-    em-websocket (0.5.1)
+    concurrent-ruby (1.3.5)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
+      http_parser.rb (~> 0)
     eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
     execjs (2.7.0)
     faraday (0.15.3)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.25)
-    ffi (1.9.25-x64-mingw32)
+    ffi (1.17.2)
     forwardable-extended (2.6.0)
     gemoji (3.0.0)
     html-pipeline (2.8.4)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    http_parser.rb (0.6.0)
+    http_parser.rb (0.8.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jekyll (3.8.4)
+    jekyll (3.8.7)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -48,11 +47,11 @@ 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 (0.12.0)
+      jekyll (>= 3.7, < 5.0)
+      rackup (~> 2.0)
+      sinatra (~> 4.0)
+      sinatra-contrib (~> 4.0)
     jekyll-feed (0.11.0)
       jekyll (~> 3.3)
     jekyll-github-metadata (2.9.4)
@@ -64,45 +63,50 @@ GEM
       sass (~> 3.4)
     jekyll-sitemap (1.2.0)
       jekyll (~> 3.3)
-    jekyll-watch (2.1.1)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
     jemoji (0.10.1)
       gemoji (~> 3.0)
       html-pipeline (~> 2.2)
       jekyll (~> 3.0)
     kramdown (1.17.0)
-    liquid (4.0.1)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    liquid (4.0.4)
+    listen (3.9.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    logger (1.7.0)
     mercenary (0.3.6)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
-    multi_json (1.13.1)
+    multi_json (1.17.0)
     multipart-post (2.0.0)
+    mustermann (3.0.4)
+      ruby2_keywords (~> 0.0.1)
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
-    nokogiri (1.8.5-x64-mingw32)
-      mini_portile2 (~> 2.3.0)
     octokit (4.12.0)
       sawyer (~> 0.8.0, >= 0.5.3)
-    pathutil (0.16.1)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     popper_js (1.14.3)
-    public_suffix (3.0.3)
-    rack (1.6.10)
-    rack-protection (1.5.5)
-      rack
-    rack-test (1.1.0)
-      rack (>= 1.0, < 3)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
-    rouge (3.3.0)
-    ruby_dep (1.5.0)
-    safe_yaml (1.0.4)
-    sass (3.6.0)
+    public_suffix (3.1.1)
+    rack (3.2.3)
+    rack-protection (4.2.1)
+      base64 (>= 0.1.0)
+      logger (>= 1.6.0)
+      rack (>= 3.0.0, < 4)
+    rack-session (2.1.1)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0)
+    rackup (2.2.1)
+      rack (>= 3)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.11.1)
+      ffi (~> 1.0)
+    rouge (3.30.0)
+    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)
@@ -110,19 +114,21 @@ GEM
     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)
+    sinatra (4.2.1)
+      logger (>= 1.6.0)
+      mustermann (~> 3.0)
+      rack (>= 3.0.0, < 4)
+      rack-protection (= 4.2.1)
+      rack-session (>= 2.0.0, < 3)
+      tilt (~> 2.0)
+    sinatra-contrib (4.2.1)
+      multi_json (>= 0.0.2)
+      mustermann (~> 3.0)
+      rack-protection (= 4.2.1)
+      sinatra (= 4.2.1)
+      tilt (~> 2.0)
     thread_safe (0.3.6)
-    tilt (2.0.8)
+    tilt (2.6.1)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
 
@@ -133,7 +139,7 @@ PLATFORMS
 DEPENDENCIES
   bootstrap (~> 4.1.3)
   jekyll (~> 3.8.4)
-  jekyll-admin
+  jekyll-admin (>= 0.11.1)
   jekyll-feed (~> 0.11.0)
   jekyll-github-metadata (~> 2.9.4)
   jekyll-redirect-from (~> 0.14.0)
@@ -141,4 +147,4 @@ DEPENDENCIES
   jemoji
 
 BUNDLED WITH
-   1.16.6
+   2.3.27