diff --git a/Gemfile.lock b/Gemfile.lock
index 6836ec2..e13efda 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,9 +6,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
-    backports (3.17.1)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -101,10 +100,6 @@ GEM
       pathutil (~> 0.9)
       rouge (>= 1.7, < 4)
       safe_yaml (~> 1.0)
-    jekyll-admin (0.10.1)
-      jekyll (>= 3.7, < 5.0)
-      sinatra (~> 1.4)
-      sinatra-contrib (~> 1.4)
     jekyll-archives (2.2.1)
       jekyll (>= 3.6, < 5.0)
     jekyll-avatar (0.6.0)
@@ -211,7 +206,6 @@ GEM
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.13.0)
-    multi_json (1.14.1)
     multipart-post (2.1.1)
     nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
@@ -219,12 +213,7 @@ GEM
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.1.0)
-    rack (1.6.13)
-    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 (0.10.1)
       ffi (~> 1.0)
@@ -242,21 +231,9 @@ GEM
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
-    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)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
-    tilt (2.0.10)
     typhoeus (1.3.1)
       ethon (>= 0.9.0)
     tzinfo (1.2.6)
@@ -268,7 +245,6 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages
-  jekyll-admin
   jekyll-archives
 
 BUNDLED WITH