The purpose of this paper was to conceptualize a refinement of the Human Development Index to democracy and corruption. To do so, a standardization on the same scale of the composite indicators, namely the HDI, the perception index of corruption and the index of democracy, was carried out to obtain a single indicator constituting the HDI adjusted to corruption and democracy. The indicator obtained is normalized between zero and one. Indeed, the better the situation in terms of human development, perception of corruption and democracy, the closer the indicator approaches to 1. On the contrary, a trend towards 0 reflects deterioration.