diff --git a/tests/e2e/block-testimonial.spec.ts b/tests/e2e/block-testimonial.spec.ts
index 80a917a6..c75e4bf1 100644
--- a/tests/e2e/block-testimonial.spec.ts
+++ b/tests/e2e/block-testimonial.spec.ts
@@ -278,8 +278,10 @@ test.describe( 'SCF Block > Testimonial', () => {
 		await publishButton.click();
 
 		// Wait for the error notice to appear at the top of the editor
+		// WP trunk renders editor notices with `notices-inline-notices__*`
+		// classes instead of the legacy `components-notice` markup.
 		const errorNotice = page.locator(
-			'.components-notice.is-error .components-notice__content'
+			'.components-notice.is-error .components-notice__content, .notices-inline-notices__notice.is-error'
 		);
 		await expect( errorNotice ).toBeVisible( { timeout: 1000 } );
 	} );
diff --git a/tests/e2e/block-v3-features.spec.ts b/tests/e2e/block-v3-features.spec.ts
index c5c6c935..afc89d1b 100644
--- a/tests/e2e/block-v3-features.spec.ts
+++ b/tests/e2e/block-v3-features.spec.ts
@@ -309,8 +309,10 @@ test.describe( 'SCF Block V3 Features', () => {
 		await publishButton.click();
 
 		// Wait for the error notice to appear
+		// WP trunk renders editor notices with `notices-inline-notices__*`
+		// classes instead of the legacy `components-notice` markup.
 		const errorNotice = page.locator(
-			'.components-notice.is-error .components-notice__content'
+			'.components-notice.is-error .components-notice__content, .notices-inline-notices__notice.is-error'
 		);
 		await expect( errorNotice ).toBeVisible( { timeout: 3000 } );
 	} );