diff --git a/npm/vite-dev-server/src/constants.ts b/npm/vite-dev-server/src/constants.ts
index 48b5e73a764c..bed23030e9ce 100644
--- a/npm/vite-dev-server/src/constants.ts
+++ b/npm/vite-dev-server/src/constants.ts
@@ -3,4 +3,6 @@ export const configFiles = [
   'vite.config.js',
   'vite.config.mjs',
   'vite.config.cjs',
+  'vite.config.mts',
+  'vite.config.cts',
 ]
diff --git a/packages/launchpad/cypress/e2e/error-handling.cy.ts b/packages/launchpad/cypress/e2e/error-handling.cy.ts
index c9ff3c2b9525..cef2949088a1 100644
--- a/packages/launchpad/cypress/e2e/error-handling.cy.ts
+++ b/packages/launchpad/cypress/e2e/error-handling.cy.ts
@@ -68,7 +68,7 @@ describe('Error handling', () => {
       cy.openProject('missing-vite-config', ['--component'])
       cy.visitLaunchpad()
 
-      ;['vite.config.js', 'vite.config.ts', 'vite.config.mjs', 'vite.config.cjs'].forEach((idiomaticConfigFile) => {
+      ;['vite.config.js', 'vite.config.ts', 'vite.config.mjs', 'vite.config.cjs', 'vite.config.mts', 'vite.config.cts'].forEach((idiomaticConfigFile) => {
         cy.contains(idiomaticConfigFile)
       })