diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 0e414e7e..8043f11b 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -14,7 +14,7 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: 3.x
-      - run: pip install mkdocs-material
+      - run: pip install mkdocs-material==7.1.9
       - run: pip install mkdocs-awesome-pages-plugin==2.5.0
       - run: mkdocs build
   docs-deploy:
@@ -29,6 +29,6 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: 3.x
-      - run: pip install mkdocs-material
+      - run: pip install mkdocs-material==7.1.9
       - run: pip install mkdocs-awesome-pages-plugin==2.5.0
       - run: mkdocs gh-deploy --force