diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2c3a465b..a4738ec3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -7,7 +7,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php: ['8.1', '8.2', '8.3']
+                php: ['8.1', '8.2', '8.3', '8.4']
 
             fail-fast: false
 
diff --git a/composer.json b/composer.json
index 37272dbd..570a4400 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
 		}
 	],
 	"require": {
-		"php": "8.1 - 8.3"
+		"php": "8.1 - 8.4"
 	},
 	"require-dev": {
 		"nette/tester": "^2.5",
@@ -28,6 +28,7 @@
 	"autoload": {
 		"classmap": ["src/"]
 	},
+	"minimum-stability": "dev",
 	"scripts": {
 		"phpstan": "phpstan analyse",
 		"tester": "tester tests -s"