A medicament delivery device is presented having a medicament container having an attached medicament delivery member； a housing where the medicament container is movable between a retracted and an extended position in which the medicament delivery member extends from the housing； a drive unit that advances the medicament container from its retracted position to its extended position to expel the contents through the medicament delivery member； and a medicament container holder for carrying the medicament container as it is advanced, the medicament container holder having a proximal end through which the medicament delivery member extends and a holding member releasably connected to the drive unit and attached to the medicament container holder. The holding member has a biasing element having a resilient structure in the form of a tubular wall provided with slots extending in the generally circumferential direction arranged to bias the medicament container in the proximal direction in the medicament container holder.
