diff --git a/.github/workflows/autoprefixer.yml b/.github/workflows/autoprefixer.yml
index 85e2491..7c8f6f9 100644
--- a/.github/workflows/autoprefixer.yml
+++ b/.github/workflows/autoprefixer.yml
@@ -17,7 +17,7 @@ jobs:
 
       - name: Run autoprefixer
         run: |
-          npm install postcss-cli autoprefixer --save-dev
+          npm install postcss postcss-cli autoprefixer --save-dev
           npm run autoprefixer
 
       - name: Create Pull Request