diff --git a/neodb-takahe b/neodb-takahe
index 73166ead..73aa2939 160000
--- a/neodb-takahe
+++ b/neodb-takahe
@@ -1 +1 @@
-Subproject commit 73166ead95801e71189d9ac65857b51ab6dfc07d
+Subproject commit 73aa2939054cbdf62b3e3344f3199d9bb8787c76
diff --git a/users/models/user.py b/users/models/user.py
index 5fb637b1..bc5f0b68 100644
--- a/users/models/user.py
+++ b/users/models/user.py
@@ -216,9 +216,13 @@ class User(AbstractUser):
 
     @property
     def last_usage(self):
-        from journal.models import Piece
+        from journal.models import ShelfMember
 
-        p = Piece.objects.filter(owner=self.identity).order_by("-edited_time").first()
+        p = (
+            ShelfMember.objects.filter(owner=self.identity)
+            .order_by("-edited_time")
+            .first()
+        )
         return p.edited_time if p else None
 
     def clear(self):