Versioning broken?

[BreakfastSerial]

I've installed cookiemonster via the documented command: go install github.com/iangcarroll/cookiemonster/cmd/cookiemonster@latest. Latest version from what I can gather according to the release tags is 1.6.0.

Yet, when I execute the binary, it will print version 1.4.0. I've also removed all data from ~/go and installed again, with the same result.

┌──(kali㉿kali)-[~/go/bin]
└─$ ./cookiemonster 
🍪 CookieMonster 1.4.0
Usage of ./cookiemonster:
  -concurrency int
        Optional. How many attempts should run concurrently; the default is 100. (default 8)
  -cookie string
        Required unless using a URL. The cookie to attempt to decode and unsign.
  -resign string
        Optional. Unencoded data to resign the cookie with; presently only supported by Django.
  -url string
        Required unless passing a cookie. An HTTP URL to retrieve cookies from instead of providing a cookie.
  -verbose
        Optional. Enables additional output on how the cookie is decoded.
  -wordlist builtin
        Optional. The path to load a base64-encoded wordlist from; the default is the builtin list. (default "builtin")