  ZrSiS was recently shown to be a new material with topologically non-trivial
band structure which exhibits multiple Dirac nodes and a robust linear band
dispersion up to an unusually high energy of 2\,eV. Such a robust linear
dispersion makes the topological properties of ZrSiS insensitive to
perturbations like carrier doping or lattice distortion. Here we show that a
novel superconducting phase with a remarkably high $T_c$ of 7.5\,K can be
induced in single crystals of ZrSiS by a non-superconducting metallic tip of
Ag. From first-principles calculations we show that the observed
superconducting phase might originate from dramatic enhancement of density of
states due to the presence of a metallic tip on ZrSiS. Our calculations also
show that the emerging tip-induced superconducting phase co-exists with the
well preserved topological properties of ZrSiS.
