diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index e61496e..2da7d14 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -14,6 +14,7 @@
        # https://python-poetry.org/docs/managing-dependencies/#dependency-groups
        - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry lock --no-update
        - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry install
+       - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH pip install polars-bio
 
  mkdocs:
    configuration: mkdocs.yml