With reference to the provision of the article 39, paragraph 4 of the Constitution, which states that ""for the enactment of a constitutional act, 3/5 of all deputies must agree, and 3/5 of senators present"", we can conclude that changing the constitution is a more difficult procedure than changing an ordinary statute. That makes it an entrenched constitution in the typology of constitutions. Despite the tradition of entrenched constitutions throughout Czech history, some voiced the opinion, during the preparation of the Constitution of the Czech Republic, that this one should be flexible.