diff --git a/packages/env/env.ts b/packages/env/env.ts
index 455d2efd5..6addeeb52 100644
--- a/packages/env/env.ts
+++ b/packages/env/env.ts
@@ -68,7 +68,7 @@ const baseEnv = {
       guessNextAuthUrlForVercelPreview,
       z.string().url()
     ),
-    DISABLE_SIGNUP: boolean.optional().default('false'),
+    DISABLE_SIGNUP: boolean.optional().default('true'),
     ADMIN_EMAIL: z
       .string()
       .min(1)