diff --git a/alembic/versions/003_pipeline_stats_tuning.py b/alembic/versions/003_pipeline_stats_tuning.py
index 4216677..9dd3677 100644
--- a/alembic/versions/003_pipeline_stats_tuning.py
+++ b/alembic/versions/003_pipeline_stats_tuning.py
@@ -26,7 +26,7 @@ def upgrade() -> None:
     op.create_table(
         "pipeline_stats",
         sa.Column("id", sa.String(36), primary_key=True),
-        sa.Column("user_id", sa.String(36),
+        sa.Column("user_id", postgresql.UUID(),
                   sa.ForeignKey("users.id", ondelete="CASCADE"),
                   nullable=True, index=True),
         sa.Column("stage", sa.String(50), nullable=False, index=True),