diff --git a/spec/dummy-app/Gemfile b/spec/dummy-app/Gemfile
index 89fd271..fe237fd 100644
--- a/spec/dummy-app/Gemfile
+++ b/spec/dummy-app/Gemfile
@@ -13,7 +13,7 @@ gem 'sprockets-rails'
 gem 'sqlite3', '~> 1.4'
 
 # Use the Puma web server [https://github.com/puma/puma]
-gem 'puma', '~> 5.0'
+gem 'puma', '~> 6.4'
 
 # Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
 gem 'importmap-rails'
diff --git a/spec/dummy-app/Gemfile.lock b/spec/dummy-app/Gemfile.lock
index 91c9a87..486edc7 100644
--- a/spec/dummy-app/Gemfile.lock
+++ b/spec/dummy-app/Gemfile.lock
@@ -154,12 +154,14 @@ GEM
       timeout
     net-smtp (0.3.3)
       net-protocol
-    nio4r (2.5.9)
+    nio4r (2.7.0)
     nokogiri (1.15.3-arm64-darwin)
       racc (~> 1.4)
+    nokogiri (1.15.3-x86_64-linux)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     public_suffix (5.0.3)
-    puma (5.6.6)
+    puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.1)
     rack (2.2.7)
@@ -231,6 +233,7 @@ GEM
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
     sqlite3 (1.6.3-arm64-darwin)
+    sqlite3 (1.6.3-x86_64-linux)
     stimulus-rails (1.2.1)
       railties (>= 6.0.0)
     thor (1.2.2)
@@ -262,6 +265,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-21
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap
@@ -274,7 +278,7 @@ DEPENDENCIES
   faker
   importmap-rails
   jbuilder
-  puma (~> 5.0)
+  puma (~> 6.4)
   rails (~> 7.0.6)
   redis (~> 4.0)
   rollbar (~> 3.4)