diff --git a/Gemfile b/Gemfile
index e54c3ba..7ea1f16 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.1.0'
 # Use postgresql as the database for Active Record
 gem 'pg', '~> 1.1'
 # Use Puma as the app server
-gem 'puma', '~> 5.0'
+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 42a5a6b..4746fa4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,7 +102,7 @@ GEM
     mini_mime (1.0.2)
     minitest (5.14.3)
     msgpack (1.4.2)
-    nio4r (2.5.5)
+    nio4r (2.5.8)
     nokogiri (1.11.1-x86_64-linux)
       racc (~> 1.4)
     pg (1.2.3)
@@ -112,7 +112,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.6)
-    puma (5.2.1)
+    puma (5.6.4)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -223,7 +223,7 @@ DEPENDENCIES
   listen (~> 3.3)
   pg (~> 1.1)
   pry-rails
-  puma (~> 5.0)
+  puma (~> 5.6)
   rack-mini-profiler (~> 2.0)
   rails (~> 6.1.0)
   sass-rails (>= 6)