diff --git a/testapp/Gemfile b/testapp/Gemfile
index c5cf1b1..11baf26 100644
--- a/testapp/Gemfile
+++ b/testapp/Gemfile
@@ -8,7 +8,7 @@ gem 'rails'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3'
 # Use Puma as the app server
-gem 'puma', '~> 4.3'
+gem 'puma', '~> 5.3'
 # Use dotenv to load development env variables
 gem 'dotenv-rails', require: 'dotenv/rails-now'
 
diff --git a/testapp/Gemfile.lock b/testapp/Gemfile.lock
index 70d09bb..398d6d6 100644
--- a/testapp/Gemfile.lock
+++ b/testapp/Gemfile.lock
@@ -156,7 +156,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.6)
-    puma (4.3.7)
+    puma (5.3.1)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -230,7 +230,7 @@ PLATFORMS
 DEPENDENCIES
   dotenv-rails
   pry
-  puma (~> 4.3)
+  puma (~> 5.3)
   rails
   rspec
   sqlite3