symlink doesn't work

[jalal@goku ~]$ sudo ln -s /usr/local/cuda-11.1/ /usr/local/cuda
[sudo] password for jalal:
[jalal@goku ~]$ ls /usr/local/cuda
lrwxrwxrwx. 1 root root 20 Sep 14 08:03 /usr/local/cuda -> /usr/local/cuda-10.2