diff --git a/CHANGELOG.md b/CHANGELOG.md
index 798cb1c..a0c97ed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 * Support Rails 8.1 scaffolding which disables system tests by default. #585 @flavorjones
 * Puma plugin now has experimental support for Rails engines. #567 @bopm
+* Puma plugin uses Puma 7's `after_stopped` callback, quashing a deprecation warning. #578 @rono23
 
 
 ## v4.3.0 / 2025-07-06
diff --git a/lib/puma/plugin/tailwindcss.rb b/lib/puma/plugin/tailwindcss.rb
index 3cf777b..29b5b62 100644
--- a/lib/puma/plugin/tailwindcss.rb
+++ b/lib/puma/plugin/tailwindcss.rb
@@ -20,7 +20,11 @@ def start(launcher)
       end
     end
 
-    launcher.events.on_stopped { stop_tailwind }
+    if Gem::Version.new(Puma::Const::PUMA_VERSION) >= Gem::Version.new("7")
+      launcher.events.after_stopped { stop_tailwind }
+    else
+      launcher.events.on_stopped { stop_tailwind }
+    end
 
     in_background do
       monitor_tailwind