A collapsible container includes a plurality of wall panels, wherein each wall panel is connected to each adjacent wall panel at a hinged connection. The wall panels are arranged so as to articulate at the hinged connections between a collapsed position and an expanded position defining a bottom wall and a plurality of side walls extending upwardly from the bottom wall. The collapsible container also includes an anti-fold lock that is disposed proximate to a hinged connection between first and second adjacent side walls. The first side wall includes at least two wall panels defining a diagonal hinge extending substantially between diagonally opposite corners of the side wall and the anti-fold lock is articulable into a locked position across the diagonal hinge.