  We study $J/\Psi$ absorption in high multiplicity proton-proton (pp)
collisions at $\sqrt {s_{NN}}=7\,$TeV. We predict a modification of the
$J/\Psi$-yield within the UrQMD transport approach, where explicit interactions
of the $J/\Psi$ with the surrounding comovers and a prehadronic phase with
adjusted cross sections and $J/\Psi$ melting is included. We present the analog
of the nuclear modification factor in pp collisions at various charged particle
multiplicities. It turns out that $J/\Psi$-Mesons may be suppressed towards
higher particle multiplicities in pp collisions at LHC energies.
