Nuclear modification factor $R_{\rm AA}$ of prompt $\Lambda_{\rm c}^+$ baryons in central (0$-$10%; left) and mid-central (30$-$50%; right) Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV, compared with the $R_{\rm AA}$ of prompt ${\rm D_s^+}$ and the average of prompt non-strange D mesons. The normalization uncertainties are shown as boxes around unity.