diff --git a/contract-tests/Gemfile b/contract-tests/Gemfile
index e70f6008..16b3d962 100644
--- a/contract-tests/Gemfile
+++ b/contract-tests/Gemfile
@@ -4,7 +4,7 @@ gem 'launchdarkly-server-sdk', path: '..'
 
 gem 'http', '>= 5.1', '< 7.0'
 gem 'json'
-gem "puma", "~> 6.6"
+gem "puma", "~> 8.0"
 gem "rackup", "~> 2.2"
 gem 'sinatra', '>= 4.1'