diff --git a/.github/workflows/test-unit.yml b/.github/workflows/test-unit.yml
index dab0fd2..9b70047 100644
--- a/.github/workflows/test-unit.yml
+++ b/.github/workflows/test-unit.yml
@@ -64,7 +64,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5']
+        php: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5', '8.6']
         type: ['Phpunit', 'Phpunit Lowest']
         include:
           - php: 'latest'
diff --git a/README.md b/README.md
index 6a07588..13b97e1 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ php-lock/lock follows [semantic versioning][1].
 
 ## Requirements
 
- - PHP 7.4 - 8.5
+ - PHP 7.4 - 8.6
  - Optionally [nrk/predis][2] to use the Predis locks.
  - Optionally the [php-pcntl][3] extension to enable locking with `flock()`
    without busy waiting in CLI scripts.
diff --git a/composer.json b/composer.json
index c55a3e7..e96df93 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
     ],
     "homepage": "https://github.com/malkusch/lock",
     "require": {
-        "php": ">=7.4 <8.6",
+        "php": ">=7.4 <8.7",
         "psr/log": "^1.0 || ^2.0 || ^3.0",
         "symfony/polyfill-php80": "^1.28"
     },