diff --git a/Gemfile.lock b/Gemfile.lock
index 6a26375..8ad6f79 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,10 +12,8 @@ GEM
     eventmachine (1.2.7-x64-mingw32)
     ffi (1.11.1)
     ffi (1.11.1-x64-mingw32)
-    filesize (0.2.0)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
-    httpclient (2.8.3)
     i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     jekyll (4.2.1)
@@ -46,7 +44,6 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.6.2)
     kramdown (2.3.1)
       rexml
     kramdown-parser-gfm (1.1.0)
@@ -56,32 +53,26 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.8.0)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
-    nokogiri (1.13.7)
-      mini_portile2 (~> 2.8.0)
-      racc (~> 1.4)
-    nokogiri (1.13.7-x64-mingw32)
-      racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     posix-spawn (0.3.13)
-    progressbar (1.11.0)
     public_suffix (4.0.1)
-    racc (1.6.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rouge (3.27.0)
     safe_yaml (1.0.5)
     sassc (2.2.1)
       ffi (~> 1.9)
     sassc (2.2.1-x64-mingw32)
       ffi (~> 1.9)
+    strscan (3.1.0)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
@@ -90,7 +81,6 @@ GEM
     tzinfo-data (1.2019.3)
       tzinfo (>= 1.0.0)
     unicode-display_width (1.6.0)
-    verbal_expressions (0.1.5)
     wdm (0.1.1)
 
 PLATFORMS