diff --git a/Gemfile b/Gemfile
index 0f9fa79..ae8393a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,5 +5,5 @@ gem "jekyll-gravatar", "~> 0.1.0", group: :jekyll_plugins
 gem "jekyll-assets", "~> 2.4.0", group: :jekyll_plugins
 gem 'sprockets-es6'
 
-gem 'bootstrap', '~> 4.0.0'
+gem "bootstrap", ">= 4.3.1"
 gem "font-awesome-sass", "~> 4.7"