  We study the nonequilibrium dynamics of a one-dimensional topological Kondo
insulator, modelled by a $p$-wave Anderson lattice model, following a quantum
quench of the on-site interaction strength. Our goal is to examine how the
quench influences the topological properties of the system, therefore our main
focus is the time evolution of the string order parameter, entanglement
spectrum and the topologically-protected edge states. We point out that
postquench local observables can be well captured by a thermal ensemble up to a
certain interaction strength. Our results demonstrate that the topological
properties after the interaction quench are preserved. Though the absolute
value of the string order parameter decays in time, the analysis of the
entanglement spectrum, Loschmidt echo and the edge states indicates the
robustness of the topological properties in the time-evolved state. These
predictions could be directly tested in state-of-the-art cold-atom experiments.
