A collapsible canopy frame includes a plurality of side poles, a plurality of edge scissor assemblies coupling adjacent side poles from among the plurality of side poles to each other, a center pole to support a canopy covering, a plurality of center pole ribs each coupling the center pole to a respective side pole of the adjacent side poles; a plurality of support members coupling the plurality of center pole ribs to the adjacent side poles, the plurality of support members being coupled to the plurality of center pole ribs through respective joints that are movable along respective center pole ribs from among the plurality of center pole ribs, and one or more tension members coupled to the plurality of center pole ribs.