diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 5bbdf47..5336275 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -74,6 +74,7 @@ jobs:
       - name: Install dependencies
         uses: "ramsey/composer-install@v1"
         with:
+          composer-options: "--no-cache"
           dependency-versions: ${{ matrix.dependencies }}
       - name: Execute
         run: |