diff --git a/.forgejo/workflows/phpunit.yml b/.forgejo/workflows/phpunit.yml
index a461070..cca8b72 100644
--- a/.forgejo/workflows/phpunit.yml
+++ b/.forgejo/workflows/phpunit.yml
@@ -19,17 +19,35 @@ jobs:
         php-versions: ['8.1']
         include:
           - wp-version: latest
+    name: Run phpunit tests
+    env:
+      extensions: mysql
+      key: cache-v1
     steps:
       - name: Checkout
         uses: https://code.forgejo.org/actions/checkout@v4
 
+      - name: Setup cache environment
+        id: extensioncache
+        uses: https://github.com/shivammathur/cache-extensions@v1
+        with:
+          php-version: ${{ matrix.php-versions }}
+          extensions: ${{ env.extensions }}
+          key: ${{ env.key }}
+
+      - name: Cache extensions
+        uses: https://code.forgejo.org/actions/cache@v4
+        with:
+          path: ${{ steps.extensioncache.outputs.dir }}
+          key: ${{ steps.extensioncache.outputs.key }}
+          restore-keys: ${{ steps.extensioncache.outputs.key }}
+
       - name: Setup PHP
         uses: https://github.com/shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-versions }}
           coverage: none
           tools: composer, phpunit-polyfills
-          extensions: mysql
 
       - name: Install Composer dependencies for PHP
         uses: "ramsey/composer-install@v1"