diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 57ff380..ea9c56c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: 3.x
-      - run: pip install mkdocs-material 
+      - run: pip install mkdocs-material==7.2.5 
       - run: mkdocs --version
       - run: pip show mkdocs-material
       - run: mkdocs gh-deploy --force