diff --git a/.github/workflows/deploy-site.yml b/.github/workflows/deploy-site.yml
index 707e833..a508657 100644
--- a/.github/workflows/deploy-site.yml
+++ b/.github/workflows/deploy-site.yml
@@ -21,6 +21,9 @@ jobs:
       - name: Install dependencies
         run: npm install
 
+      - name: Install mkdocs
+        run: pip install mkdocs-material
+
       - name: Build Site
         run: npm run site:build