diff --git a/Gemfile b/Gemfile
index 47fec0c..051a695 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.1.2'
 # Use mysql as the database for Active Record
 gem 'mysql2', '>= 0.4.4'
 # Use Puma as the app server
-gem 'puma', '~> 5.5'
+gem 'puma', '~> 5.6'
 # Use Redis adapter to run Action Cable in production
 gem 'redis', '~> 4.2.5'
 # Simple, efficient background processing for Ruby.
diff --git a/Gemfile.lock b/Gemfile.lock
index f9e15e5..fdc0764 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -143,7 +143,7 @@ GEM
     path_expander (1.1.0)
     psych (3.3.0)
     public_suffix (4.0.6)
-    puma (5.5.2)
+    puma (5.6.4)
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.6.0)
@@ -275,7 +275,7 @@ DEPENDENCIES
   jwt (~> 2.2.1)
   listen (>= 3.0.5, <= 3.4.1)
   mysql2 (>= 0.4.4)
-  puma (~> 5.5)
+  puma (~> 5.6)
   rack-cors (~> 1.1.0)
   rails (~> 6.1.2)
   redis (~> 4.2.5)