diff --git a/docs/_config.yml b/docs/_config.yml
index 6afaf987..ed6a05cb 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -12,6 +12,10 @@ color_scheme: light
 search_enabled: true
 heading_anchors: true
 
+# Sort the navigation menu case-insensitively so it matches the ordering of
+# the "List of Supported Packages" page (e.g. aiohttp before MarkupSafe).
+nav_sort: case_insensitive
+
 # Callout styling: `{: .note }` blocks (comments) get a blue left bar,
 # `{: .warning }` blocks get a red left bar.
 callouts: