  All possible theories of quantum gravity suggest the existence of a minimal
length. As a consequence, the usual Heisenberg Uncertainty Principle (HUP) is
replaced by a more general uncertainty principle known as the Generalised
Uncertainty Principle(GUP). The dynamics of all quantum mechanical system gets
modified due to GUP. In this work, we consider both Einstein's and Debye's
models to find the quantum gravity effect on the specific heat of solids. GUP
modified specific heat in Einstein's model shows usual exponential dominance at
low temperatures. Further, the modification to Debye's specific heat is
calculated by considering the GUP modified dispersion relation, which becomes
time dependent for elastic waves.
