Securify Grammar Error

[MichMassetti]

Hello, I am trying to use Securify on a smart contracts of 0.8.9 version, but the tool continues to give me the following error:
securify.grammar.GrammarError: Symbol 'UncheckedBlock' not found in grammar.

What should I do?
Thx!

[jacopovt]

From previous Issues reported and from here it seems the current version of Solidity supported is up to 0.6.*