cannot find module providing package github.com/bbangert/toml

[Elham Meybodian]

Hello,
I run command
go get -u github.com/wgliang/pgproxy
but
github.com/wgliang/pgproxy imports
github.com/wgliang/pgproxy/cli imports
github.com/bbangert/toml: cannot find module providing package github.com/bbangert/toml