  Context. As a fragile element, lithium is a sensitive probe of physical
processes occurring in stellar interiors. Aims. We aim at investigating the
relationship between lithium abundance and rotation rate in low-mass members of
the newly discovered 125~Myr-old Psc-Eri stellar stream. Methods. We obtained
high resolution optical spectra and measure the equivalent width of the 607.8
nm LiI line for 40 members of the Psc-Eri stream, whose rotational periods have
been derived by arXiv:1905.10588. Results. We show that a tight correlation
exists between lithium content and rotation rate among the late-G to early
K-type stars of the Psc-Eri stream. Fast rotators are systematically Li-rich,
while slow rotators are Li-depleted. This trend mimics the one previously
reported for the similar age Pleiades cluster. Conclusions. The
lithium-rotation connection thus seems to be universal over a restricted
effective temperature range for low-mass stars at or close to the zero-age main
sequence, and does not depend on environmental conditions.
