diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d79aaed..bf1327b 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -35,7 +35,7 @@ jobs:
             behat: '^3.23'
             dependencies: 'lowest'
           - php: '8.4'
-            behat: '4.0.0-alpha1'
+            behat: '^4.0'
             dependencies: 'highest'
 
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e358543..3a7b32f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## [Unreleased]
+
+- Support Behat 4.0 stable: `behat/behat` now allows `^3.23 || ^4.0`, and CI runs
+  against the latest Behat 4.x instead of 4.0.0-alpha1.
+
 ## [0.7.0] - 2026-09-08
 
 First release. A Behat extension that runs scenarios in a Playwright-controlled
diff --git a/README.md b/README.md
index d5a69c4..59e148f 100644
--- a/README.md
+++ b/README.md
@@ -24,8 +24,8 @@ it keeps the Mink API and swaps the driver.
 
 ## Installation
 
-The extension requires PHP 8.2 or later, Behat 3.23 or later, and Playwright
-PHP 1.4 or later.
+The extension requires PHP 8.2 or later, Behat 3.23 or later (including 4.x),
+and Playwright PHP 1.4 or later.
 
 ```bash
 composer require --dev playwright-php/playwright-behat
@@ -153,7 +153,7 @@ vendor/bin/phpunit
 The suite includes a real `behat` run against `tests/Fixtures`, including a
 failing scenario that must leave a screenshot. Repository CI runs it on PHP
 8.2, 8.3 and 8.4 against the latest Behat 3.x, plus one job on the lowest
-supported dependencies and one on Behat 4.0.0-alpha1.
+supported dependencies and one on the latest Behat 4.x.
 
 ## License
 
diff --git a/composer.json b/composer.json
index 47511b8..bed3a47 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     "homepage": "https://playwright-php.dev/behat",
     "require": {
         "php": "^8.2",
-        "behat/behat": "^3.23",
+        "behat/behat": "^3.23 || ^4.0",
         "playwright-php/playwright": "^1.4",
         "symfony/config": "^5.4 || ^6.4 || ^7.0 || ^8.0",
         "symfony/dependency-injection": "^5.4 || ^6.4 || ^7.0 || ^8.0",