diff --git a/gemstash.gemspec b/gemstash.gemspec
index ce699add..69f59a9f 100644
--- a/gemstash.gemspec
+++ b/gemstash.gemspec
@@ -37,7 +37,7 @@ you push your own private gems as well."
   spec.add_runtime_dependency "faraday_middleware", "~> 1.0"
   spec.add_runtime_dependency "lru_redux", "~> 1.1"
   spec.add_runtime_dependency "psych", ">= 3.2.1"
-  spec.add_runtime_dependency "puma", ">= 6.1", "< 8.0"
+  spec.add_runtime_dependency "puma", ">= 6.1", "< 9.0"
   spec.add_runtime_dependency "sequel", "~> 5.0"
   spec.add_runtime_dependency "server_health_check-rack", "~> 0.1"
   spec.add_runtime_dependency "sinatra", ">= 1.4", "< 5.0"