diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ac152be..417203c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
       matrix:
         php-versions: ['7.3', '7.4', '8.0']
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2
@@ -21,12 +21,12 @@ jobs:
 
       - name: Cache Composer packages
         id: composer-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: vendor
-          key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
+          key: ${{ runner.os }}-php-${{ matrix.php-versions }}-${{ hashFiles('composer.json') }}
           restore-keys: |
-            ${{ runner.os }}-php-
+            ${{ runner.os }}-php-${{ matrix.php-versions }}-
 
       - name: Install dependencies
         run: composer install --prefer-dist --no-progress