The invention relates to a lifting door, comprising a movable door leaf made of slats, the slats being connected to one another so as to bend, and comprising structure-mounted frames. Lateral guides for the door leaf having a vertical section and a lintel section, and frame sealing elements of a sealing assembly are arranged thereon, which close a gap between the door leaf and a section of the frames facing the door opening when the lifting door is closed. The lintel sections of the guides, together with the vertical sections of the guides, are displaceably mounted on the frames, wherein the guides can only be displaced in a direction that is diagonal to the door leaf plane, but not in a moving direction of the door leaf. Thus, an improved lifting door having greater operational safety, and at the same time an improved sealing effect between the door leaf and the door opening can be achieved.