diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2495ee85..7710663e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -12,7 +12,7 @@ jobs:
         strategy:
             matrix:
                 os: [ubuntu-latest, windows-latest, macOS-latest]
-                php: ['8.1', '8.2', '8.3']
+                php: ['8.1', '8.2', '8.3', '8.4']
                 sapi: ['php', 'php-cgi']
 
             fail-fast: false
diff --git a/composer.json b/composer.json
index 73863703..d5a609cc 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
 		}
 	],
 	"require": {
-		"php": "8.1 - 8.3",
+		"php": "8.1 - 8.4",
 		"nette/utils": "^4.0.4"
 	},
 	"require-dev": {
diff --git a/readme.md b/readme.md
index ddb92992..35fba5d0 100644
--- a/readme.md
+++ b/readme.md
@@ -35,7 +35,7 @@ Installation
 composer require nette/http
 ```
 
-It requires PHP version 8.1 and supports PHP up to 8.3.
+It requires PHP version 8.1 and supports PHP up to 8.4.
 
 
 HTTP Request