diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f8baedae..b0ba598f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
         strategy:
             matrix:
                 os: [ubuntu-latest, windows-latest]
-                php: ['8.2', '8.3', '8.4', '8.5']
+                php: ['8.2', '8.3', '8.4', '8.5', '8.6']
 
             fail-fast: false
 
diff --git a/AGENTS.md b/AGENTS.md
index f37d4169..ff0d4247 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -20,7 +20,7 @@ Nette Utils is a standalone PHP utility library: strings, arrays/iterables, HTML
 generation, images, JSON, validation, filesystem, file search, and process
 execution.
 
-- **PHP Version**: 8.2 - 8.5
+- **PHP Version**: 8.2 - 8.6
 - **Package**: `nette/utils`
 
 ## Essential Commands
diff --git a/composer.json b/composer.json
index 7014841f..b881ec68 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
 		}
 	],
 	"require": {
-		"php": "8.2 - 8.5"
+		"php": "8.2 - 8.6"
 	},
 	"require-dev": {
 		"nette/tester": "^2.5",
diff --git a/readme.md b/readme.md
index 8c717be4..f34633e1 100644
--- a/readme.md
+++ b/readme.md
@@ -41,7 +41,7 @@ The recommended way to install is via Composer:
 composer require nette/utils
 ```
 
-Nette Utils 4.1 is compatible with PHP 8.2 to 8.5.
+Nette Utils 4.1 is compatible with PHP 8.2 to 8.6.
 
  <!---->