diff --git a/Gemfile.lock b/Gemfile.lock
index 0cd8918..0df3507 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,12 +1,12 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.2.1)
+    activesupport (6.0.6.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-      zeitwerk (~> 2.2)
+      zeitwerk (~> 2.2, >= 2.2.2)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     coffee-script (2.4.1)
@@ -16,7 +16,7 @@ GEM
     colorator (1.1.0)
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
-    concurrent-ruby (1.1.5)
+    concurrent-ruby (1.1.10)
     dnsruby (1.61.3)
       addressable (~> 2.5)
     em-websocket (0.5.1)
@@ -205,7 +205,7 @@ GEM
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
-    minitest (5.14.0)
+    minitest (5.17.0)
     multipart-post (2.1.1)
     nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
@@ -244,7 +244,7 @@ GEM
       tzinfo (>= 1.0.0)
     unicode-display_width (1.6.0)
     wdm (0.1.1)
-    zeitwerk (2.2.2)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby
@@ -253,6 +253,7 @@ DEPENDENCIES
   faraday (< 1.0)
   github-pages
   jekyll-feed (~> 0.12)
+  jekyll-github-metadata
   jekyll-octicons
   minima (~> 2.5)
   tzinfo (~> 1.2)