diff --git a/src/blackboard/db.py b/src/blackboard/db.py
index 177b5ef..6d48f73 100644
--- a/src/blackboard/db.py
+++ b/src/blackboard/db.py
@@ -179,7 +179,7 @@ MANUAL_STATUSES = frozenset({"cancelled", "paused"})
 VALID_TRANSITIONS = {
     "pending":       {"claimed", "paused", "blocked", "cancelled"},
     "claimed":       {"working", "paused", "pending", "cancelled"},
-    "working":       {"review", "blocked", "failed", "paused", "escalated", "waiting_human", "cancelled"},
+    "working":       {"review", "done", "blocked", "failed", "paused", "escalated", "waiting_human", "cancelled"},
     "paused":        {"working", "claimed", "review", "escalated", "waiting_human", "cancelled"},  # 恢复到 resumed_from 记录的状态
     "review":        {"done", "pending", "failed", "paused", "escalated", "waiting_human", "cancelled"},
     "blocked":       {"pending", "escalated", "cancelled"},