diff --git a/playwright/e2e/forgot-password/forgot-password.spec.ts b/playwright/e2e/forgot-password/forgot-password.spec.ts
index 71475e892e..af4e6def7e 100644
--- a/playwright/e2e/forgot-password/forgot-password.spec.ts
+++ b/playwright/e2e/forgot-password/forgot-password.spec.ts
@@ -6,16 +6,25 @@ SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Com
 Please see LICENSE files in the repository root for full details.
 */
 
-import { expect, test } from "../../element-web-test";
+import { expect, test as base } from "../../element-web-test";
 import { selectHomeserver } from "../utils";
 import { emailHomeserver } from "../../plugins/homeserver/synapse/emailHomeserver.ts";
 import { isDendrite } from "../../plugins/homeserver/dendrite";
+import { Credentials } from "../../plugins/homeserver";
 
-const username = "user1234";
-// this has to be password-like enough to please zxcvbn. Needless to say it's just from pwgen.
-const password = "oETo7MPf0o";
 const email = "user@nowhere.dummy";
 
+const test = base.extend<{ credentials: Pick<Credentials, "username" | "password"> }>({
+    // eslint-disable-next-line no-empty-pattern
+    credentials: async ({}, use, testInfo) => {
+        await use({
+            username: `user_${testInfo.testId}`,
+            // this has to be password-like enough to please zxcvbn. Needless to say it's just from pwgen.
+            password: "oETo7MPf0o",
+        });
+    },
+});
+
 test.use(emailHomeserver);
 test.use({
     config: {
@@ -45,31 +54,35 @@ test.describe("Forgot Password", () => {
         await expect(page.getByRole("main")).toMatchScreenshot("forgot-password.png");
     });
 
-    test("renders email verification dialog properly", { tag: "@screenshot" }, async ({ page, homeserver }) => {
-        const user = await homeserver.registerUser(username, password);
+    test(
+        "renders email verification dialog properly",
+        { tag: "@screenshot" },
+        async ({ page, homeserver, credentials }) => {
+            const user = await homeserver.registerUser(credentials.username, credentials.password);
 
-        await homeserver.setThreepid(user.userId, "email", email);
+            await homeserver.setThreepid(user.userId, "email", email);
 
-        await page.goto("/");
+            await page.goto("/");
 
-        await page.getByRole("link", { name: "Sign in" }).click();
-        await selectHomeserver(page, homeserver.baseUrl);
+            await page.getByRole("link", { name: "Sign in" }).click();
+            await selectHomeserver(page, homeserver.baseUrl);
 
-        await page.getByRole("button", { name: "Forgot password?" }).click();
+            await page.getByRole("button", { name: "Forgot password?" }).click();
 
-        await page.getByRole("textbox", { name: "Email address" }).fill(email);
+            await page.getByRole("textbox", { name: "Email address" }).fill(email);
 
-        await page.getByRole("button", { name: "Send email" }).click();
+            await page.getByRole("button", { name: "Send email" }).click();
 
-        await page.getByRole("button", { name: "Next" }).click();
+            await page.getByRole("button", { name: "Next" }).click();
 
-        await page.getByRole("textbox", { name: "New Password", exact: true }).fill(password);
-        await page.getByRole("textbox", { name: "Confirm new password", exact: true }).fill(password);
+            await page.getByRole("textbox", { name: "New Password", exact: true }).fill(credentials.password);
+            await page.getByRole("textbox", { name: "Confirm new password", exact: true }).fill(credentials.password);
 
-        await page.getByRole("button", { name: "Reset password" }).click();
+            await page.getByRole("button", { name: "Reset password" }).click();
 
-        await expect(page.getByRole("button", { name: "Resend" })).toBeInViewport();
+            await expect(page.getByRole("button", { name: "Resend" })).toBeInViewport();
 
-        await expect(page.locator(".mx_Dialog")).toMatchScreenshot("forgot-password-verify-email.png");
-    });
+            await expect(page.locator(".mx_Dialog")).toMatchScreenshot("forgot-password-verify-email.png");
+        },
+    );
 });
diff --git a/playwright/e2e/one-to-one-chat/one-to-one-chat.spec.ts b/playwright/e2e/one-to-one-chat/one-to-one-chat.spec.ts
index deefb305db..8a4401f5f2 100644
--- a/playwright/e2e/one-to-one-chat/one-to-one-chat.spec.ts
+++ b/playwright/e2e/one-to-one-chat/one-to-one-chat.spec.ts
@@ -17,8 +17,8 @@ const test = base.extend<{
 test.describe("1:1 chat room", () => {
     test.use({
         displayName: "Jeff",
-        user2: async ({ homeserver }, use) => {
-            const credentials = await homeserver.registerUser("user1234", "p4s5W0rD", "Timmy");
+        user2: async ({ homeserver }, use, testInfo) => {
+            const credentials = await homeserver.registerUser(`user2_${testInfo.testId}`, "p4s5W0rD", "Timmy");
             await use(credentials);
         },
     });