Alter column with views depended on it without drop views

Hello list,

Is there a way to change a table column from varchar(n) to varchar with 
views depended on it.

The problem is that I do not want to drop and re-create all views 
dependencies. I am looking for a way/command that can change the column 
type and all views will be auto updated as well.

Thanks a lot!
Emi
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PostgreSQL 8.3.18 on x86_64-unknown-linux-gnu