diff --git a/demo/Gemfile b/demo/Gemfile
index 48cfbc530b..cba0d2a089 100644
--- a/demo/Gemfile
+++ b/demo/Gemfile
@@ -31,7 +31,7 @@ end
 eval_gemfile "gemfiles/kuby.gemfile"
 
 # Use Puma as the app server
-gem "puma", "~> 6.6.1"
+gem "puma", "~> 7.1.0"
 
 # Reduces boot times through caching; required in config/boot.rb
 gem "bootsnap", ">= 1.4.2", require: false
diff --git a/demo/Gemfile.lock b/demo/Gemfile.lock
index 57850df022..f09fc8d5b6 100644
--- a/demo/Gemfile.lock
+++ b/demo/Gemfile.lock
@@ -238,7 +238,7 @@ GEM
     multi_json (1.15.0)
     multipart-post (2.4.1)
     netrc (0.11.0)
-    nio4r (2.7.4)
+    nio4r (2.7.5)
     nokogiri (1.18.10-x86_64-linux-gnu)
       racc (~> 1.4)
     octicons (19.18.0)
@@ -260,7 +260,7 @@ GEM
       date
       stringio
     public_suffix (6.0.2)
-    puma (6.6.1)
+    puma (7.1.0)
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.1.17)
@@ -380,7 +380,7 @@ DEPENDENCIES
   lookbook (~> 2.3.13)
   primer_view_components!
   pry-byebug
-  puma (~> 6.6.1)
+  puma (~> 7.1.0)
   rack-cors
   railties (= 7.2.2.1)
   rake (~> 13.3)