The UN mandate for the African Union Mission in Somalia (AMISOM) will expire on 31 December 2021. Fatigued financial donors want reforms and perhaps cuts, while the AU and troop-contributing states seek reliable funding. Somalia’s government relies on the mission but is nonetheless ambivalent about the need to maintain it. Despite a mixed record, AMISOM is essential in maintaining a measure of stability in Somalia. A hasty withdrawal would embolden Al-Shabaab’s Islamist insurgency and could plunge the country into chaos. But donors are increasingly reluctant to bankroll a mission that has made little progress against militants over recent years. The UN Security Council should extend AMISOM’s mandate by six months. AMISOM’s partners should use that time to make a reconfiguration plan that contemplates a five-year horizon; seek funding from the UN, African Union and others to address shortfalls; and encourage reconciliation between Mogadishu and its domestic adversaries.