diff --git a/Gemfile b/Gemfile
index cbbc677..abbab09 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-ruby '2.7'
+ruby '2.7.4'
 
 gem "jekyll-theme-chirpy", "~> 6.1"