France is to invite architects from around the world to submit their designs for a new spire to sit atop a renovated Notre-Dame cathedral.
Prime Minister Edouard Philippe told reporters they hoped for "a new spire that is adapted to the techniques and the challenges of our era".
President Emmanuel Macron vowed it would be rebuilt "even more beautifully", adding that he wanted the work done within five years - although experts warn its reconstruction could take decades.
The spire destroyed in the blaze was added to the cathedral during a 19th Century restoration project led by French architect Eugene Viollet-le-Duc.
But Mr Philippe questioned "whether we should even recreate the spire as it was conceived by Viollet-le-Duc... or if, as is often the case in the evolution of heritage, we should endow Notre-Dame with a new spire".
So far, €800m ($902m; £692m) has already been pledged by a number of companies and business tycoons to help rebuild the Unesco World Heritage site.
Mr Philippe promised "every euro paid for the construction of Notre-Dame will serve this purpose and nothing else", while also announcing a tax reduction for those donating towards the reconstruction.