diff --git a/Gemfile b/Gemfile
index f5dfa0b..b965c11 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'active_model_serializers', '~> 0.10.0'
 # Use mysql as the database for Active Record
 gem 'mysql2', '~> 0.5.5'
 # Use Puma as the app server
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 5.6'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 # gem 'jbuilder', '~> 2.7'
 # Use Redis adapter to run Action Cable in production
diff --git a/Gemfile.lock b/Gemfile.lock
index 2fc04b5..f810f85 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -179,7 +179,7 @@ GEM
       timeout
     net-smtp (0.3.3)
       net-protocol
-    nio4r (2.5.9)
+    nio4r (2.7.0)
     nokogiri (1.15.1-x86_64-linux)
       racc (~> 1.4)
     orm_adapter (0.5.0)
@@ -187,7 +187,7 @@ GEM
     paranoia (2.6.1)
       activerecord (>= 5.1, < 7.1)
     public_suffix (5.0.1)
-    puma (4.3.12)
+    puma (5.6.8)
       nio4r (~> 2.0)
     racc (1.6.2)
     rack (2.2.7)
@@ -281,7 +281,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   mysql2 (~> 0.5.5)
   paranoia
-  puma (~> 4.1)
+  puma (~> 5.6)
   rack-cors
   rails (~> 6.1.0)
   rubyzip