Democracy and popular sovereignty have undergone profound changes in the modern world. Acts of sovereignty have no place within a constitutional democracy that establishes limits on all powers of the State. Supranational integration adds limits to State power. Globalisation opens a new front of tension for popular sovereignty by weakening the power of the State, a limitation that is particularly important in its most advanced phase, the third globalisation (even during the current fragmentation of globalization due to geopolitical tensions). The constitutions of our time should not leave the major issues raised by globalisation out of the constitutional text. In particular, the challenges posed by the configuration of the digital society. The regulation of the digital world in the constitution itself is necessary because the constitution must be digitalsed so that it does not remain an obsolete document of the analog world, while it is also necessary to constitutionalise the digital world itself.