diff --git a/Gemfile b/Gemfile
index 295e0a81..9d105b46 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem 'rails', '~> 6.1.7'
 # Use PostgreSQL as the database for Active Record
 gem 'pg', '~> 1.4'
 # Use Puma as the app server
-gem 'puma', '~> 5.6'
+gem 'puma', '~> 6.4'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 6.0'
 # Use Uglifier as compressor for JavaScript assets
diff --git a/Gemfile.lock b/Gemfile.lock
index ef55cf8e..b62ed13e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -187,7 +187,7 @@ GEM
       byebug (~> 11.0)
       pry (>= 0.13, < 0.15)
     public_suffix (5.0.5)
-    puma (5.6.8)
+    puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (2.2.9)
@@ -330,7 +330,7 @@ DEPENDENCIES
   listen (~> 3.8)
   pg (~> 1.4)
   pry-byebug
-  puma (~> 5.6)
+  puma (~> 6.4)
   rails (~> 6.1.7)
   rails-controller-testing (~> 1.0)
   rspec-rails (~> 6.0)