While astrophysical observations imply that 85% of the matter content is unaccounted for, the
nature of this dark matter (DM) component remains unknown. Weakly Interacting Massive
Particles (WIMPs)—DM particles that interact at or below the weak interaction scale—could
naturally explain this missing matter. These interactions with the Standard Model (SM) allow
them to be gravitationally captured in celestial bodies like the Sun. Trapped DM in the solar
core could subsequently annihilate, producing stable SM particles, of which only neutrinos can
escape the Sun’s dense interior. Therefore, an excess of neutrinos originating from the direction
of the Sun would serve as evidence of DM. The IceCube Upgrade, a dense infill of the IceCube
Neutrino Observatory, will lower the energy threshold and improve sensitivity in the range from
1 to 500 GeV, thereby enhancing IceCube’s ability to detect GeV-scale DM. In this contribution, I
present projections of the IceCube Upgrade’s sensitivity to the DM-proton scattering cross section
for DM masses between 3 GeV and 500 GeV. These sensitivities position IceCube as the most
sensitive indirect detection experiment for DM in the mass range from 3 GeV to 10 TeV.