diff --git a/Gemfile b/Gemfile
index b77da022..39221cee 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem 'rails', '~> 7.0.8'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3'
 # Use Puma as the app server
-gem 'puma', '~> 6.3'
+gem 'puma', '~> 6.4'
 gem 'puma_worker_killer'
 # Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
 gem 'importmap-rails'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5847c209..887fa08e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -180,7 +180,7 @@ GEM
       rack
       railties (>= 7.0.0)
     public_suffix (5.0.3)
-    puma (6.3.1)
+    puma (6.4.0)
       nio4r (~> 2.0)
     puma_worker_killer (0.3.1)
       get_process_mem (~> 0.2)
@@ -307,7 +307,7 @@ DEPENDENCIES
   minitest-ci
   paranoia (~> 2.6)
   propshaft
-  puma (~> 6.3)
+  puma (~> 6.4)
   puma_worker_killer
   rack-mini-profiler (~> 3.1)
   rails (~> 7.0.8)