diff --git a/Gemfile b/Gemfile
index dcf3b44..86be889 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source "https://rubygems.org"
 
-gem 'jekyll', '>= 3.8.5'
-gem 'github-pages', '~> 198'
+gem 'jekyll', '>= 3.9.0'
+gem 'github-pages', '~> 223'
 gem 'yajl-ruby', '>= 1.3.1'
 gem 'wdm', '>= 0.1.1' if Gem.win_platform?
-gem 'solargraph'
\ No newline at end of file
+gem 'solargraph'