diff --git a/Gemfile b/Gemfile
index 0f9faa9..140f634 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ gem 'rubyzip'
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 # Use Puma as the app server
-gem 'puma', '~> 5.3'
+gem 'puma', '~> 5.6'
 # Use SCSS for stylesheets
 gem 'sass-rails', '>= 6'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/Gemfile.lock b/Gemfile.lock
index 8fdafc6..4884a24 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -212,7 +212,7 @@ GEM
       pdf-core (~> 0.9.0)
       ttfunk (~> 1.7)
     public_suffix (4.0.6)
-    puma (5.5.2)
+    puma (5.6.2)
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.3)
@@ -365,7 +365,7 @@ DEPENDENCIES
   nokogiri
   pg
   prawn
-  puma (~> 5.3)
+  puma (~> 5.6)
   rails (~> 6.0.2, >= 6.0.2.1)
   rmagick
   rspec-its