diff --git a/Gemfile b/Gemfile
index e8871bf..e102dc7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ ruby ENV['CUSTOM_RUBY_VERSION'] || '2.2.5'
 gem 'bigcommerce', '~> 1.0'
 gem 'omniauth-bigcommerce', '~> 0.3.0'
 
-gem 'sinatra', '~> 1.4.7'
+gem 'sinatra', '~> 2.2.3'
 gem 'datamapper'
 gem 'thin'
 gem 'dotenv'