Invalid fixed-term contract change via dismissal remains valid and enforceable under Polish labor law.

The Supreme Court dismissed the cassation appeal filed by three employees against a theater regarding their employment contracts. The employees argued that a unilateral change from indefinite to fixed-term contracts via dismissal was invalid and should be reversed. The court held that such a dismissal is legally effective and that the employees' failure to object for years while signing new contracts confirmed the validity of the arrangement.