An anchoring device for deployment in a pre-formed hole to secure soft tissue to bone. Embodiments of the anchoring device include an outer member and an inner member that moves relative to the outer member from a suture-unlocked position to a suture-locked position. The inner member further includes an elongated projection with a proximal end that defines an outer dimension. In one embodiment, the elongated projection is configured to interface with a portion of the outer member so as to change the outer dimension in a manner that causes the elongated projection to displace a portion of the bone.