diff --git a/docs/releases/2.17.md b/docs/releases/2.17.md
index 94fb295825..677f5f2f1f 100644
--- a/docs/releases/2.17.md
+++ b/docs/releases/2.17.md
@@ -38,12 +38,12 @@ Here are other changes related to the redesign:
 
 ## Upgrade considerations
 
-## Removed warning in Internet Explorer (IE11)
+### Removed warning in Internet Explorer (IE11)
 
 * IE11 support was officially dropped in Wagtail 2.15, as of this release there will no longer be a warning shown to users of this browser.
 * Wagtail is fully compatible with Microsoft Edge, Microsoft’s replacement for Internet Explorer. You may consider using its `IE mode <https://docs.microsoft.com/en-us/deployedge/edge-ie-mode>`_ to keep access to IE11-only sites, while other sites and apps like Wagtail can leverage modern browser capabilities.
 
-## Replaced `content_json` `TextField` with `content` `JSONField` in `PageRevision`
+### Replaced `content_json` `TextField` with `content` `JSONField` in `PageRevision`
 
 * The `content_json` field in the `PageRevision` model has been renamed to `content`.
 * The field now internally uses `JSONField` instead of `TextField`.