swag: Cannot update to 1.6.6: checksum mismatch

Describe the bug I can’t update to version 1.6.6.

To Reproduce

go get -u github.com/swaggo/swag

will return the following error message:

go: downloading github.com/swaggo/swag v1.6.6
verifying github.com/swaggo/swag@v1.6.6: checksum mismatch
        downloaded: h1:ujSziE+CfBxr5eIsVJgjGNbDxq1zPfLHxlu5NJmRFSQ=
        sum.golang.org: h1:3YX5hmuUyCMT/OqqnjW92gULAfHg3hVjpcPm53N64RY=

SECURITY ERROR
This download does NOT match the one reported by the checksum server.
The bits may have been replaced on the origin server, or an attacker may
have intercepted the download attempt.

For more information, see 'go help module-auth'.

Expected behavior

Package updates without issues.

Your swag version 1.6.6

Your go version go version go1.13.5 linux/amd64