diff --git a/frontend/playwright.config.js b/frontend/playwright.config.js
index b1b6ffd5f..c5a16ddb1 100644
--- a/frontend/playwright.config.js
+++ b/frontend/playwright.config.js
@@ -17,8 +17,8 @@ export default defineConfig({
   forbidOnly: !!process.env.CI,
   /* Retry on CI only */
   retries: process.env.CI ? 2 : 0,
-  /* Opt out of parallel tests on CI. */
-  workers: process.env.CI ? 1 : undefined,
+  /* Opt out of parallel tests by default; can be overriden with --workers */
+  workers: 1,
   /* Reporter to use. See https://playwright.dev/docs/test-reporters */
   reporter: "html",
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */