What are the reasons for the uprising of Stepan Razin?

Several reasons led to the uprising, which characterize the peculiarities of the development of Russia in the 17th century.
First, it is the strengthening of serfdom. In 1649, the term for detecting fugitive peasants became unlimited.
Secondly, the increase in tax oppression, this was associated with the Thirteen Years War 1654-1667, for the same reason, uprisings occurred earlier, for example, in 1662.
Thirdly, the measures taken by the authorities to limit Cossack liberties.
Fourth, many fugitive peasants had accumulated on the Don by 1667, they became a good addition to Razin’s army.