diff --git a/src/accounting/models.py b/src/accounting/models.py
index 65f7943..147f91b 100644
--- a/src/accounting/models.py
+++ b/src/accounting/models.py
@@ -112,7 +112,7 @@ class Account(db.Model):
     """An account."""
     __tablename__ = "accounting_accounts"
     """The table name."""
-    id: Mapped[random_pk]
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=False)
     """The account ID."""
     base_code: Mapped[str] \
         = mapped_column(db.ForeignKey(BaseAccount.code, onupdate="CASCADE",
@@ -535,7 +535,7 @@ class JournalEntry(db.Model):
     """A journal entry."""
     __tablename__ = "accounting_journal_entries"
     """The table name."""
-    id: Mapped[random_pk]
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=False)
     """The journal entry ID."""
     date: Mapped[dt.date]
     """The date."""
@@ -646,7 +646,7 @@ class JournalEntryLineItem(db.Model):
     """A line item in the journal entry."""
     __tablename__ = "accounting_journal_entry_line_items"
     """The table name."""
-    id: Mapped[random_pk] = mapped_column()
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=False)
     """The line item ID."""
     journal_entry_id: Mapped[int] \
         = mapped_column(db.ForeignKey(JournalEntry.id, onupdate="CASCADE",