diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a249a03..29f785a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php: ['7.1', '7.4', '8.0', '8.1', '8.2']
+                php: ['7.1', '7.4', '8.0', '8.1', '8.2', '8.3']
                 composer: ['--prefer-lowest', '']
                 exclude:
                     -   php: '8.0'
@@ -20,6 +20,8 @@ jobs:
                         composer: '--prefer-lowest'
                     -   php: '8.2'
                         composer: '--prefer-lowest'
+                    -   php: '8.3'
+                        composer: '--prefer-lowest'
         steps:
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
@@ -29,7 +31,7 @@ jobs:
                     coverage: xdebug
 
             -   name: Git checkout
-                uses: actions/checkout@v3
+                uses: actions/checkout@v4
 
             -   name: Validate composer.json and composer.lock
                 run: composer validate
@@ -37,8 +39,8 @@ jobs:
             -   name: Prepare Composer cache vars
                 id: composer
                 run: |
-                    echo "::set-output name=cache_dir::$(composer config cache-files-dir)"
-                    echo "::set-output name=cache_key::$(date +'%Y-%m-%d')-${{ runner.os }}-${{ matrix.php }}${{ matrix.composer }}-composer-"
+                    echo "cache_dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+                    echo "cache_key=$(date +'%Y-%m-%d')-${{ runner.os }}-${{ matrix.php }}${{ matrix.composer }}-composer-" >> $GITHUB_OUTPUT
 
             -   name: Cache Composer dependencies
                 uses: actions/cache@v3