diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index db2e1cd0b9a..55fea717f71 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -7,6 +7,7 @@ build:
   jobs:
     post_checkout:
       - (git --no-pager log --pretty="tformat:%s" -1 | grep -vqF "[skip-rtd]") || exit 183
+      - git fetch --unshallow || true
     pre_install:
       - git update-index --assume-unchanged doc/conf.py ci/requirements/doc.yml