diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index d53e704..c8a8692 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -27,7 +27,8 @@ jobs:
         with:
           python-version: '3.12'
           cache: pip
-      - run: pip install "mkdocs-material>=9.5" pymdown-extensions
+          cache-dependency-path: docs/requirements.txt
+      - run: pip install -r docs/requirements.txt
       - run: mkdocs build --strict --site-dir site
       - uses: actions/upload-pages-artifact@v3
         with:
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..c5eebe0
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,2 @@
+mkdocs-material>=9.5,<10
+pymdown-extensions>=10.7,<11