diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 5e2e702..a447793 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -21,4 +21,5 @@ jobs:
           restore-keys: |
             mkdocs-material-
       - run: pip install mkdocs-material
+      - run: pip install mkdocstrings
       - run: mkdocs gh-deploy --force