diff --git a/docs/stylesheets/extra.css b/docs/stylesheets/extra.css
index 2dd18ee55..22f822cf0 100644
--- a/docs/stylesheets/extra.css
+++ b/docs/stylesheets/extra.css
@@ -65,20 +65,20 @@
 }
 
 /* bit of a hack to stop the banner taking space when empty */
-.md-announce .md-announce__inner {
+.md-banner .md-banner__inner {
   margin: 0 auto;
   padding: 0;
 }
-.md-announce {
+.md-banner {
   background: #fff5b5;
 }
-.md-announce .versionwarning h1 {
+.md-banner .versionwarning h1 {
   font-weight: bold;
 }
-.md-announce .versionwarning p {
+.md-banner .versionwarning p {
   color: black;
 }
-.md-announce a {
+.md-banner a {
   color: blue;
   text-decoration: underline;
 }
diff --git a/mkdocs.yml b/mkdocs.yml
index 566479616..7bcf997a9 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -29,7 +29,8 @@ markdown_extensions:
   - attr_list
   - meta
   - pymdownx.superfences
-  - pymdownx.tabbed
+  - pymdownx.tabbed:
+      alternate_style: true
   - pymdownx.details
   - pymdownx.snippets:
       base_path: docs/snippets
diff --git a/requirements.txt b/requirements.txt
index cb3b9a67d..28095d100 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-mkdocs-material==7.3.1
+mkdocs-material==8.1.10
 mkdocs-exclude>=1.0
 mkdocs-macros-plugin>=0.5.12
 mkdocs-awesome-pages-plugin>=2.5