diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index dbdcb60..4bcdaa1 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,38 +1,37 @@
 name: CI
 on:
-  push:
-    branches:
-      - master
-  pull_request: null
-  schedule:
-    -
-      cron: '0 0 * * MON'
+    push:
+        branches:
+            - master
+    pull_request: null
+    schedule:
+        - cron: "0 0 * * MON"
 jobs:
-  tests:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        php-version: ['7.4', '8.0', '8.1']
-        composer-flags: ['']
-        name: ['']
-        include:
-          - php-version: '7.3'
-            composer-flags: '--prefer-lowest'
-            name: '(prefer lowest dependencies)'
-    name: Tests PHP ${{ matrix.php-version }} ${{ matrix.name }}
-    steps:
-      - name: checkout
-        uses: actions/checkout@v4
-      - name: setup
-        uses: shivammathur/setup-php@2
-        with:
-          php-version: ${{ matrix.php-version }}
-      - name: composer install
-        run: composer update --prefer-dist --no-interaction ${{ matrix.composer-flags }}
-      - name: Build docker
-        run: docker build -t httpbin .
-      - name: Run docker
-        run: docker run -d -p 8081:80 httpbin
-      - name: tests
-        run: composer test
+    tests:
+        runs-on: ubuntu-latest
+        strategy:
+            fail-fast: false
+            matrix:
+                php-version: ["7.4", "8.0", "8.1"]
+                composer-flags: [""]
+                name: [""]
+                include:
+                    - php-version: "7.3"
+                      composer-flags: "--prefer-lowest"
+                      name: "(prefer lowest dependencies)"
+        name: Tests PHP ${{ matrix.php-version }} ${{ matrix.name }}
+        steps:
+            - name: checkout
+              uses: actions/checkout@v4
+            - name: setup
+              uses: shivammathur/setup-php@2
+              with:
+                  php-version: ${{ matrix.php-version }}
+            - name: composer install
+              run: composer update --prefer-dist --no-interaction ${{ matrix.composer-flags }}
+            - name: Build docker
+              run: docker build -t httpbin .
+            - name: Run docker
+              run: docker run -d -p 8081:80 httpbin
+            - name: tests
+              run: composer test