diff --git a/Gemfile b/Gemfile
index a7af8cf0094..640e46ba226 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ ruby '>=2.3.1'
 source 'https://rubygems.org'
 
 # Middleman
-gem 'middleman', '~> 4.2.1'
+gem 'middleman', '~> 4.3.7'
 gem 'middleman-syntax', '~> 3.0.0'
 gem 'middleman-autoprefixer', '~> 2.7.1'
 gem 'middleman-sprockets', '~> 4.1.0'