diff --git a/mautrix_telegram/db/upgrade/v01_initial_revision.py b/mautrix_telegram/db/upgrade/v01_initial_revision.py
index aaa1a166..2ce82204 100644
--- a/mautrix_telegram/db/upgrade/v01_initial_revision.py
+++ b/mautrix_telegram/db/upgrade/v01_initial_revision.py
@@ -73,10 +73,12 @@ async def migrate_legacy_to_v1(conn: Connection, scheme: str) -> None:
                 ON UPDATE CASCADE ON DELETE SET NULL
             """
         )
+        await conn.execute("ALTER TABLE puppet ALTER COLUMN id DROP IDENTITY IF EXISTS")
         await conn.execute("ALTER TABLE puppet ALTER COLUMN id DROP DEFAULT")
-        await conn.execute("DROP SEQUENCE puppet_id_seq")
+        await conn.execute("DROP SEQUENCE IF EXISTS puppet_id_seq")
+        await conn.execute("ALTER TABLE bot_chat ALTER COLUMN id DROP IDENTITY IF EXISTS")
         await conn.execute("ALTER TABLE bot_chat ALTER COLUMN id DROP DEFAULT")
-        await conn.execute("DROP SEQUENCE bot_chat_id_seq")
+        await conn.execute("DROP SEQUENCE IF EXISTS bot_chat_id_seq")
         await conn.execute("ALTER TABLE portal ALTER COLUMN config TYPE jsonb USING config::jsonb")
         await conn.execute(
             "ALTER TABLE telegram_file ALTER COLUMN decryption_info TYPE jsonb "