diff --git a/Gemfile b/Gemfile
index 014703c..a89ea25 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby(File.read(File.join(File.dirname(__FILE__), '.ruby-version')).strip)
 
 # System
 gem 'pg', '~> 1.2', '>= 1.2.3'
-gem 'puma', '~> 5.2'
+gem 'puma', '~> 5.6'
 gem 'rails', '~> 6.1'
 gem 'sidekiq', '~> 6.1'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 5977345..89ec345 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -279,7 +279,7 @@ GEM
     msgpack (1.4.2)
     multipart-post (2.1.1)
     n_plus_one_control (0.6.0)
-    nio4r (2.5.7)
+    nio4r (2.5.8)
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -300,7 +300,7 @@ GEM
       pry (>= 0.10.4)
     psych (3.3.0)
     public_suffix (4.0.6)
-    puma (5.2.2)
+    puma (5.6.4)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -562,7 +562,7 @@ DEPENDENCIES
   pg (~> 1.2, >= 1.2.3)
   pry-byebug (~> 3.9)
   pry-rails (~> 0.3.9)
-  puma (~> 5.2)
+  puma (~> 5.6)
   rack-cors (~> 1.1)
   rails (~> 6.1)
   rails-controller-testing (~> 1.0)