diff --git a/src-api/Gemfile b/src-api/Gemfile
index 373e8e8e07..04cc5c96a2 100644
--- a/src-api/Gemfile
+++ b/src-api/Gemfile
@@ -2,12 +2,12 @@ ruby '>=2.3.1'
 source 'https://rubygems.org'
 
 # Middleman
-gem 'middleman', '~> 4.3.7'
-gem 'middleman-syntax', '~> 3.0.0'
-gem 'middleman-autoprefixer', '~> 2.7.1'
+gem 'middleman', '~> 4.4.0'
+gem 'middleman-syntax', '~> 3.2.0'
+gem 'middleman-autoprefixer', '~> 2.8.0'
 gem 'middleman-sprockets', '~> 4.1.0'
 gem 'rouge', '~> 2.0.5'
 gem 'redcarpet', '~> 3.4.0'
 gem 'nokogiri', '~> 1.13.6'
-gem 'sprockets', '~> 3.7'
+gem 'sprockets', '~> 3.7', '>= 3.7.3'
 gem "sass", "~> 3.7"