diff --git a/Gemfile b/Gemfile
index 1848a142..703b4e8b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,8 +8,8 @@ source "https://rubygems.org"
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-# gem "jekyll", "~> 3.8.6"
-gem "github-pages", "~> 219", group: :jekyll_plugins
+gem "jekyll", "~> 3.9.5"
+gem "github-pages", "~> 231", group: :jekyll_plugins
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 gem "minima", "~> 2.0"