diff --git a/backend/app/alembic/versions/063_seed_stt_tts_model_configs.py b/backend/app/alembic/versions/063_seed_stt_tts_model_configs.py
index 7c6405f3a..23070924a 100644
--- a/backend/app/alembic/versions/063_seed_stt_tts_model_configs.py
+++ b/backend/app/alembic/versions/063_seed_stt_tts_model_configs.py
@@ -78,7 +78,10 @@ def upgrade():
         "CREATE INDEX ix_model_config_output_modalities ON global.model_config USING gin (output_modalities)"
     )
 
-    # 6. Seed rows — pricing per 1M tokens (USD): response/batch = text i/o; audio = audio-modal i/o
+    op.execute(
+        "SELECT setval(pg_get_serial_sequence('global.model_config', 'id'), MAX(id)) FROM global.model_config"
+    )
+
     op.execute(
         """
         INSERT INTO global.model_config