  This work presents a new search for magnetic monopoles using data taken with
the ANTARES neutrino telescope over a period of 10 years (January 2008 to
December 2017). Compared to previous ANTARES searches, this analysis uses a
run-by-run simulation strategy, with a larger exposure as well as a new
simulation of magnetic monopoles taking into account the Kasama, Yang and
Goldhaber model for their interaction cross-section with matter. No signal
compatible with the passage of relativistic magnetic monopoles is observed, and
upper limits on the flux of magnetic monopoles with $\beta$ = v/c $\geq$ 0.55,
are presented. For ultra-relativistic magnetic monopoles the flux limit is
$\sim$ 7$\times$$10^{-18}$ $\rm cm^{-2} s^{-1} sr^{-1}$.
