The move comes despite new Prime Minister Mateusz Morawiecki going on the charm offensive with the bloc to smooth badly-strained relations.
Poland have been at loggerheads with the EU over its courts and migration policies.
The country’s nationalist ruling party Law and Justice (PiS) believe their judiciary is steeped in a communist mindset and needs reform.
Brussels has criticised the planned overhaul as weakening the courts’ independence and rule of law.
Despite that, Mr Morawiecki, a former banker who took the reins of the conservative government in Warsaw last month, has shown no sign of backing down.

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The new PM is however keen to improve relations with the bloc, and said: “I genuinely believe that with added effort to explain our intentions we will be able to clarify misunderstandings.
“I believe dialogue will lead to de-escalation.”
Mr Morawiecki’s party have also moved to tighten control over state media.
His charm offensive approach to the EU is in stark contrast to his predecessor Jaroslaw Kaczynski, who condemned Brussels for meddling in his country’s politics.
Poland’s feud with the bloc is said to have left it increasingly isolated ahead of the bloc’s next seven-year budget.
The country is currently the biggest beneficiary of EU funds and received 7 billion Euros in 2016.
EU Budget Commissioner Guenther Oettinger told a news conference in Brussels: “Either the rule of law and the independence of courts would constitute a condition for claiming European budgetary resources.
“Or otherwise the restoration of the rule of law could be seen as a possible way of getting more resources.”
The remarks seemed to contradict an earlier statement from EU boss Jean-Claude Juncker, who suggested Poland could be rewarded for compliance with EU recommendations.
In July last year Poland’s then leader Jaroslaw Kaczynski joined Hungary’s leader in slamming Brussels for telling them what to do in their own countries.
He blasted EU Commission Vice President Frans Timmermans, Donald Tusk and the former European Parliament president Martin Schulz for their growing interference.