diff --git a/Gemfile.lock b/Gemfile.lock
index 74e2cc4..abc9d80 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,11 +1,12 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.2.10)
-      i18n (~> 0.7)
+    activesupport (6.0.6.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
-      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
+      zeitwerk (~> 2.2, >= 2.2.2)
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     bibtex-ruby (4.4.4)
@@ -16,25 +17,25 @@ GEM
       citeproc (>= 1.0.4, < 2.0)
       csl (~> 1.4)
     colorator (1.1.0)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.2.0)
     csl (1.5.0)
       namae (~> 1.0)
     csl-styles (1.0.1.8)
       csl (~> 1.0)
-    em-websocket (0.5.1)
+    em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
-    eventmachine (1.2.5)
+      http_parser.rb (~> 0)
+    eventmachine (1.2.7)
     faraday (0.13.1)
       multipart-post (>= 1.2, < 3)
-    ffi (1.12.2)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
-    gemoji (3.0.0)
-    html-pipeline (2.7.1)
+    gemoji (4.0.1)
+    html-pipeline (2.14.3)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    http_parser.rb (0.6.0)
-    i18n (0.9.1)
+    http_parser.rb (0.8.0)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     jekyll (3.7.0)
       addressable (~> 2.4)
@@ -58,7 +59,7 @@ GEM
     jekyll-gist (1.5.0)
       octokit (~> 4.2)
     jekyll-paginate (1.1.0)
-    jekyll-sass-converter (1.5.1)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
     jekyll-scholar (5.11.0)
       bibtex-ruby (~> 4.0, >= 4.0.13)
@@ -67,22 +68,20 @@ GEM
       jekyll (~> 3.0)
     jekyll-sitemap (1.1.1)
       jekyll (~> 3.3)
-    jekyll-watch (2.0.0)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
-    jemoji (0.9.0)
-      activesupport (~> 4.0, >= 4.2.9)
-      gemoji (~> 3.0)
+    jemoji (0.13.0)
+      gemoji (>= 3, < 5)
       html-pipeline (~> 2.2)
-      jekyll (~> 3.0)
-    kramdown (1.16.2)
+      jekyll (>= 3.0, < 5.0)
+    kramdown (1.17.0)
     latex-decode (0.3.1)
-    liquid (4.0.0)
-    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 (3.8.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.1)
     minimal-mistakes-jekyll (4.9.0)
       jekyll (~> 3.6)
       jekyll-data (~> 1.0)
@@ -91,23 +90,24 @@ GEM
       jekyll-paginate (~> 1.1)
       jekyll-sitemap (~> 1.1)
       jemoji (~> 0.8)
-    minitest (5.11.1)
+    minitest (5.17.0)
     multipart-post (2.0.0)
     namae (1.0.0)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.14.1)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     octokit (4.8.0)
       sawyer (~> 0.8.0, >= 0.5.3)
-    pathutil (0.16.1)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.1)
-    rb-fsevent (0.10.2)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
-    rouge (3.1.0)
-    ruby_dep (1.5.0)
-    safe_yaml (1.0.4)
-    sass (3.5.5)
+    public_suffix (3.1.1)
+    racc (1.6.2)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    rouge (3.30.0)
+    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)
@@ -116,8 +116,9 @@ GEM
       addressable (>= 2.3.5, < 2.6)
       faraday (~> 0.8, < 1.0)
     thread_safe (0.3.6)
-    tzinfo (1.2.4)
+    tzinfo (1.2.11)
       thread_safe (~> 0.1)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby