diff --git a/.github/workflows/run-test.yml b/.github/workflows/run-test.yml
index 47ec22f..98c6ff5 100644
--- a/.github/workflows/run-test.yml
+++ b/.github/workflows/run-test.yml
@@ -12,6 +12,11 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: Cache Composer dependencies
+      uses: actions/cache@v2
+      with:
+        path: /tmp/composer-cache
+        key: ${{ runner.os }}-${{ hashFiles('**/composer.lock') }}
     - uses: php-actions/composer@v6
       with:
         php_version: ${{ matrix.php }}