diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 52c9991..98d320a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -21,6 +21,7 @@ jobs:
           cache-version: 2
           packages: |
             any::rmarkdown
+            any::ggplot2
       - name: Setup quarto
         uses: quarto-dev/quarto-actions/setup@v2
       - run: |