diff --git a/projects/js-packages/components/changelog/update-page-isolation-styles b/projects/js-packages/components/changelog/update-page-isolation-styles
new file mode 100644
index 000000000000..8caa12575091
--- /dev/null
+++ b/projects/js-packages/components/changelog/update-page-isolation-styles
@@ -0,0 +1,4 @@
+Significance: minor
+Type: changed
+
+Admin page: add isolation styles for wp-ui popovers.
diff --git a/projects/js-packages/components/components/admin-page/style.module.scss b/projects/js-packages/components/components/admin-page/style.module.scss
index 588fa35e4fe3..7e3d579f5fef 100644
--- a/projects/js-packages/components/components/admin-page/style.module.scss
+++ b/projects/js-packages/components/components/admin-page/style.module.scss
@@ -1,4 +1,7 @@
 .admin-page {
+	// Ensures portaled popovers from `@wordpress/ui` appear correctly.
+	// See https://github.com/WordPress/gutenberg/blob/trunk/packages/ui/README.md#setup
+	isolation: isolate;
 	margin-left: -20px; // to neutralize the padding of #wpcontent.
 
 	@media (max-width: 782px) {