diff --git a/Gemfile b/Gemfile
index bcace161..319b17e9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '2.7.1'
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 6.0.3.6'
 # Use Puma as the app server
-gem 'puma', '~> 5.2'
+gem 'puma', '~> 5.6'
 # 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 1f0eac6f..ab542caa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -111,7 +111,7 @@ GEM
     mini_portile2 (2.5.3)
     minitest (5.14.4)
     msgpack (1.4.2)
-    nio4r (2.5.7)
+    nio4r (2.5.8)
     nokogiri (1.11.7)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -121,7 +121,7 @@ GEM
       method_source (~> 1.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    puma (5.2.2)
+    puma (5.6.4)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -233,7 +233,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   pg (~> 1.2.3)
   pry-rails (>= 0.3.9)
-  puma (~> 5.2)
+  puma (~> 5.6)
   rails (~> 6.0.3.6)
   rspec-rails (~> 4.0)
   sass-rails (~> 6.0)