diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index bc21554..3d2ce0a 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -51,6 +51,7 @@ jobs:
 
       - name: Build
         run: |
+          npm install -D --save autoprefixer
           npm install -D --save postcss-cli
           npm install -D --save postcss
           hugo