diff --git a/rails/Gemfile b/rails/Gemfile
index 986e992..d16309f 100644
--- a/rails/Gemfile
+++ b/rails/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.1.4'
 # Use mysql as the database for Active Record
 gem 'mysql2', '>= 0.4.4'
 # Use Puma as the app server
-gem 'puma', '~> 5.6'
+gem 'puma', '~> 6.0'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 6'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/rails/Gemfile.lock b/rails/Gemfile.lock
index 1dac03c..493f9b9 100644
--- a/rails/Gemfile.lock
+++ b/rails/Gemfile.lock
@@ -104,7 +104,7 @@ GEM
     nokogiri (1.13.6)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    puma (5.6.4)
+    puma (6.0.2)
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.3)
@@ -208,7 +208,7 @@ DEPENDENCIES
   json (>= 2.3.0)
   listen (~> 3.7)
   mysql2 (>= 0.4.4)
-  puma (~> 5.6)
+  puma (~> 6.0)
   rack-mini-profiler (~> 3.0)
   rails (~> 6.1.4)
   rspec-rails