pnpm self-update doesn't override the current version of pnpm

[jnef13]

Everytime I run pnpm self-update to update pnpm, it gives me this error:

 WARN  The target bin directory already contains an exe called pnpm, so removing C:\Users\username\AppData\Local\pnpm\pnpm.EXE
 EPERM  EPERM: operation not permitted, unlink 'C:\Users\username\AppData\Local\pnpm\pnpm.EXE'

As a result, I have to manually go to the directory, remove the pnpm executable, and replace it with the never one. How can I get pnpm to actually replace itself? I've tried running it as administrator, but it still dosn't work.