diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 23268192..32a64ee2 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -19,6 +19,8 @@ jobs:
       - name: Build Document
         run: |
           pip install -r requirements-dev.txt
+          apt update
+          apt install -y pandoc
           touch .env
           echo "SPHINX_GITHUB_CHANGELOG_TOKEN=${{secrets.DOC_GH_API_TOKEN}}" > .env
           sphinx-build -b html docs build