  We report the results of high pressure x-ray diffraction, x-ray absorption,
and electrical transport measurements of Kondo insulator Ce$_3$Bi$_4$Pt$_3$ up
to 42 GPa, the highest pressure reached in the study of any Ce-based KI. We
observe a smooth decrease in volume and movement toward intermediate Ce valence
with pressure, both of which point to increased electron correlations. Despite
this, temperature-dependent resistance data show the suppression of the
interaction-driven ambient pressure insulating ground state. We also discuss
potential ramifications of these results for the predicted topological KI
state.
