diff --git a/.github/workflows/scripts/docs/build-docs.sh b/.github/workflows/scripts/docs/build-docs.sh
index 411d891c..e0fa2c76 100755
--- a/.github/workflows/scripts/docs/build-docs.sh
+++ b/.github/workflows/scripts/docs/build-docs.sh
@@ -6,7 +6,7 @@ docker run \
   --rm \
   --user "$(id -u):$(id -g)" \
   -v "${PWD}:/docs" \
-  squidfunk/mkdocs-material:7.3.0 build --strict
+  squidfunk/mkdocs-material:7.3.3 build --strict
 
 # Remove unnecessary build artifacts: https://github.com/squidfunk/mkdocs-material/issues/2519
 cd site || exit
diff --git a/docs/content/assets/css/customizations.css b/docs/content/assets/css/customizations.css
index 53fee32d..49ede009 100644
--- a/docs/content/assets/css/customizations.css
+++ b/docs/content/assets/css/customizations.css
@@ -1,4 +1,7 @@
-/* This file adds our styling additions / fixes to maintain. */
+/*
+  This file adds our styling additions / fixes to maintain.
+  Some of which are overly specific and may break with future updates by upstream.
+*/
 
 /* ============================================================================================================= */
 
@@ -40,6 +43,19 @@ If you want to append instead, switch `::before` to `::after`.
 
 /* ============================================================================================================= */
 
+/*
+  UX Bugfix for left navbar visibility on top-level (tabbed) pages with no nested sub-pages.
+  Upstream will not fix: https://github.com/squidfunk/mkdocs-material/issues/3109
+*/
+
+@media screen and (min-width: 76.25em) {
+  .md-nav--lifted>.md-nav__list>.md-nav__item--active>.md-nav__link {
+    display: none;
+  }
+}
+
+/* ============================================================================================================= */
+
 /*
   UX Bugfix for permalink affecting typography in headings.
   Upstream will not fix: https://github.com/squidfunk/mkdocs-material/issues/2369