diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index c888a6f..f69e122 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.10
+          python-version: 3.9
       - run: pip install poetry
       - run: poetry install --with=docs
       - run: poetry run mkdocs gh-deploy --force
diff --git a/pyproject.toml b/pyproject.toml
index 782306f..f2c9647 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,9 +11,9 @@ python = "^3.9"
 
 
 [tool.poetry.group.docs.dependencies]
-mkdocs-material = "^9.4.6"
-mkdocstrings-python = "^1.7.3"
-mkdocs-git-revision-date-localized-plugin = "^1.2.1"
+mkdocs-material = "^9.4"
+mkdocstrings-python = "^1.7"
+mkdocs-git-revision-date-localized-plugin = "^1.2"
 
 [build-system]
 requires = ["poetry-core"]