diff --git a/tests/groups.spec.ts b/tests/groups.spec.ts
index 87ab922..90297cb 100644
--- a/tests/groups.spec.ts
+++ b/tests/groups.spec.ts
@@ -62,4 +62,13 @@ test('should allow CRUD on groups', async ({ page }) => {
   await expect(page.getByRole('row').nth(1).getByRole('cell').nth(6)).toHaveText('0');
   await expect(page.getByRole('row').nth(1).getByRole('cell').nth(7)).toHaveText('0');
   await expect(page.getByRole('row').nth(1).locator('svg:visible')).toHaveCount(3);
+
+  // Modify the newly added group
+  await page.getByRole('row').nth(1).locator('svg').nth(2).click(); // Click edit icon
+  await expect(dialog).toBeVisible();
+  await expect(dialog.getByLabel('Name')).toHaveValue("Pam's friends");
+  await dialog.getByLabel('Name').fill('Pam\'s best friends');
+  await dialog.getByRole('button', { name: 'Update' }).click();
+
+  await expect(page.getByRole('row').nth(1).getByRole('cell').nth(0)).toContainText('Pam\'s best friends');
 });
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diff --git a/tests/mocks/groups.tsx b/tests/mocks/groups.tsx
index 317761e..eca9908 100644
--- a/tests/mocks/groups.tsx
+++ b/tests/mocks/groups.tsx
@@ -39,22 +39,48 @@ export default async function mockGroupsAPI({ page }: { page: Page }): Promise<v
       await route.fulfill({ json })
     } else if (route.request().method() === 'POST') {
       const json = {
-          "id": "4d55bc34-6f42-4e2e-82a1-71ae32da2466",
-          "name": "Pam's friends",
-          "icon": "pi pi-desktop",
-          "parent_id": null,
-          "color": "#0000ff",
-          "attendance": {
-            "total": 0,
-            "considered": 0,
-            "invited": 0,
-            "confirmed": 0,
-            "declined": 0,
-            "tentative": 0
-          }
+        "id": "4d55bc34-6f42-4e2e-82a1-71ae32da2466",
+        "name": "Pam's friends",
+        "icon": "pi pi-desktop",
+        "parent_id": null,
+        "color": "#0000ff",
+        "attendance": {
+          "total": 0,
+          "considered": 0,
+          "invited": 0,
+          "confirmed": 0,
+          "declined": 0,
+          "tentative": 0
         }
+      }
 
       await route.fulfill({ json })
     }
   })
+
+  page.route("*/**/api/default/groups/*", async route => {
+    if (route.request().method() === 'PUT') {
+      const json = {
+        "id": "4d55bc34-6f42-4e2e-82a1-71ae32da2466",
+        "name": "Pam's best friends",
+        "icon": "pi pi-desktop",
+        "parent_id": null,
+        "color": "#0000ff",
+        "attendance": {
+          "total": 0,
+          "considered": 0,
+          "invited": 0,
+          "confirmed": 0,
+          "declined": 0,
+          "tentative": 0
+        }
+      }
+
+      await route.fulfill({ json });
+    } else if (route.request().method() === 'DELETE') {
+      const json = {}
+
+      await route.fulfill({ json });
+    }
+  });
 }
\ No newline at end of file