[dancer-users] Rewrite a vale in session

guys, i have stored a session like this: $customer->{id} = $result->[0]->{id}; $customer->{name} = decode("utf-8", $result->[0]->{name}); $customer->{email} = $result->[0]->{email}; $customer->{points} = $result->[0]->{points}; $customer->{lang} = $result->[0]->{lang}; session customer => $customer; Later i will need to change the lang value. How do i change it? i've tryed session ("customer")->{lang} => 'other_value';