How to update brew if it is not updating?

Question

I am trying to update my brew install. When I update using brew update it shows already up to date, however it is not.

Tried brew doctor as well. But it showed nothing.

Is reinstalling brew the only option left?

I am using Mac OS Sierra .

Answer 1

So I found a solution. Unlucky me stumbled upon this one I guess.

Used the same solution:

cd $(brew --repo) && git fetch && git reset --hard origin/master && brew update