diff --git a/.github/workflows/__shared-ci.yml b/.github/workflows/__shared-ci.yml
index 1cc1704..098178b 100644
--- a/.github/workflows/__shared-ci.yml
+++ b/.github/workflows/__shared-ci.yml
@@ -11,6 +11,7 @@ jobs:
           - php-versions: "8.1"
           - php-versions: "8.2"
           - php-versions: "8.3"
+          - php-versions: "8.4"
             stable: true
 
     runs-on: ubuntu-latest
@@ -54,6 +55,8 @@ jobs:
       - name: 👕 Lint
         if: matrix.stable
         run: composer php-cs-fixer -- --format=checkstyle | tools/vendor/bin/cs2pr
+        env: 
+          PHP_CS_FIXER_IGNORE_ENV: ${{ matrix.php-versions == '8.4' && '1' || '' }}
 
       - name: 🔬 Rector
         id: rector
diff --git a/Makefile b/Makefile
index a5655a5..084f3eb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-PHP_VERSION=8.3
+PHP_VERSION=8.4
 PROJECT_NAME=$(shell basename $(CURDIR))
 UID=$(shell id -u)
 GID=$(shell id -g)
@@ -50,7 +50,7 @@ ci: ## Execute CI scripts for given PHP version
 
 ## Run PHP for given version
 define run-php
-	@docker run -it --rm -v ${PWD}:${PWD} -w ${PWD} "${IMAGE}" $(1)
+	@docker run -it --rm -v ${PWD}:${PWD} -e PHP_CS_FIXER_IGNORE_ENV=$(if $(filter 8.4,$(PHP_VERSION)),1,) -w ${PWD} "${IMAGE}" $(1)
 endef
 
 #############################
diff --git a/composer.json b/composer.json
index 7384c7b..2f4df91 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "issues": "https://github.com/neilime/php-css-lint/issues"
   },
   "require": {
-    "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
+    "php": "^8.1",
     "ext-json": "*"
   },
   "require-dev": {