diff --git a/Gemfile b/Gemfile
index d8e66bb..4584f53 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
 # A sample Gemfile
 source "https://rubygems.org"
 
-gem "jekyll", ">= 3.6.3"
+gem "jekyll", ">= 4.0.0"