diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 9e21b55..c555602 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -26,4 +26,5 @@ jobs:
           restore-keys: |
             mkdocs-material-
       - run: pip install mkdocs-material 
+      - run: pip install git-revision-date-localized
       - run: mkdocs gh-deploy --force