diff --git a/.github/workflows/composer.yml b/.github/workflows/composer.yml
index 2484538d..96e7790d 100644
--- a/.github/workflows/composer.yml
+++ b/.github/workflows/composer.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '8.0', '8.1', '8.2' ]
+        php: [ '8.0', '8.1', '8.2', '8.3' ]
         outdated-args: [ '--ignore=phpunit/phpunit' ]
         include:
           - php: '7.4'
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index 29f8db10..6f989f90 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '7.4', '8.0', '8.1', '8.2' ]
+        php: [ '7.4', '8.0', '8.1', '8.2', '8.3' ]
 
     name: PHPStan - PHP ${{ matrix.php }}
 
diff --git a/.github/workflows/phpstan_lowest.yml b/.github/workflows/phpstan_lowest.yml
index 2bfbb6ef..94d16eb8 100644
--- a/.github/workflows/phpstan_lowest.yml
+++ b/.github/workflows/phpstan_lowest.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '7.4', '8.0', '8.1', '8.2' ]
+        php: [ '7.4', '8.0', '8.1', '8.2', '8.3' ]
 
     name: PHPStan with lowest dependencies - PHP ${{ matrix.php }}
 
diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 7801b8db..ec4c552e 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '7.4', '8.0', '8.1', '8.2' ]
+        php: [ '7.4', '8.0', '8.1', '8.2', '8.3' ]
 
     name: PHPunit - PHP ${{ matrix.php }}
 
diff --git a/.github/workflows/phpunit_lowest.yml b/.github/workflows/phpunit_lowest.yml
index 7acb4dec..4c7b3822 100644
--- a/.github/workflows/phpunit_lowest.yml
+++ b/.github/workflows/phpunit_lowest.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '7.4', '8.0', '8.1', '8.2' ]
+        php: [ '7.4', '8.0', '8.1', '8.2', '8.3' ]
 
     name: PHPunit with lowest dependencies - PHP ${{ matrix.php }}
 
diff --git a/.github/workflows/syntax_checker.yml b/.github/workflows/syntax_checker.yml
index 3fd02bc2..24fca089 100644
--- a/.github/workflows/syntax_checker.yml
+++ b/.github/workflows/syntax_checker.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '7.4', '8.0', '8.1', '8.2' ]
+        php: [ '7.4', '8.0', '8.1', '8.2', '8.3' ]
 
     name: PHP syntax checker - PHP ${{ matrix.php }}
 
@@ -36,7 +36,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [ '8.1', '8.2' ]
+        php: [ '8.1', '8.2', '8.3' ]
 
     name: PHP syntax checker - PHP ${{ matrix.php }}
 
diff --git a/composer.json b/composer.json
index c497e3cb..238161a0 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
         "static analysis"
     ],
     "require": {
-        "php": ">=7.4 <8.3",
+        "php": ">=7.4 <8.4",
         "ext-json": "*",
         "phpstan/phpstan": "^1.10.21",
         "phpstan/phpstan-nette": "^1.2.6",