diff --git a/Gemfile b/Gemfile
index bb5e97f..2d3353f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 gem 'sinatra', '~> 4.0.0'
 gem 'prometheus-client'
-gem 'puma'
+gem 'puma', '>= 6.4.3'
 gem 'newrelic_rpm'
 gem 'nokogiri', '~> 1.16'
 gem 'rack', '~> 3.0.9'
diff --git a/Gemfile.lock b/Gemfile.lock
index c8faee0..42f1db9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     newrelic_rpm (9.7.1)
-    nio4r (2.7.0)
+    nio4r (2.7.3)
     nokogiri (1.16.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
@@ -38,7 +38,7 @@ GEM
       byebug (~> 11.0)
       pry (>= 0.13, < 0.15)
     public_suffix (5.0.4)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (3.0.9.1)
@@ -97,7 +97,7 @@ DEPENDENCIES
   nokogiri (~> 1.16)
   prometheus-client
   pry-byebug
-  puma
+  puma (>= 6.4.3)
   rack (~> 3.0.9)
   rack-test (>= 2.0.0)
   rackup