diff --git a/packages/core/src/resources/Users.ts b/packages/core/src/resources/Users.ts
index 17ffaac7..4ee7e714 100644
--- a/packages/core/src/resources/Users.ts
+++ b/packages/core/src/resources/Users.ts
@@ -148,7 +148,7 @@ export type CreateUserOptions = {
   canCreateGroup?: boolean;
   colorSchemeId?: number;
   email?: string;
-  externUid?: number;
+  externUid?: string;
   external?: boolean;
   extraSharedRunnersMinutesLimit?: number;
   forceRandomPassword?: boolean;