diff --git a/ui/src/test/e2e/alerting.spec.ts b/ui/src/test/e2e/alerting.spec.ts
index 832ea568..90aaa1a8 100644
--- a/ui/src/test/e2e/alerting.spec.ts
+++ b/ui/src/test/e2e/alerting.spec.ts
@@ -62,12 +62,14 @@ test.describe('alerting UI smoke', () => {
     const main = page.locator('main');
     await expect(main.getByRole('link', { name: ruleName })).toBeVisible({ timeout: 10_000 });
 
-    // Cleanup: delete.
-    page.once('dialog', (d) => d.accept());
+    // Cleanup: open ConfirmDialog via row Delete button, confirm in dialog.
     await page
       .getByRole('row', { name: new RegExp(ruleName) })
       .getByRole('button', { name: /^delete$/i })
       .click();
+    const confirmDelete = page.getByRole('dialog');
+    await expect(confirmDelete.getByText(/delete alert rule/i)).toBeVisible();
+    await confirmDelete.getByRole('button', { name: /^delete$/i }).click();
     await expect(main.getByRole('link', { name: ruleName })).toHaveCount(0);
   });
 
@@ -97,11 +99,13 @@ test.describe('alerting UI smoke', () => {
 
     await expect(page.getByText(unique).first()).toBeVisible({ timeout: 10_000 });
 
-    page.once('dialog', (d) => d.accept());
     await page
       .getByRole('row', { name: new RegExp(unique) })
       .getByRole('button', { name: /^end$/i })
       .click();
+    const confirmEnd = page.getByRole('dialog');
+    await expect(confirmEnd.getByText(/end silence/i)).toBeVisible();
+    await confirmEnd.getByRole('button', { name: /end silence/i }).click();
     await expect(page.getByText(unique)).toHaveCount(0);
   });
 });