diff --git a/app/alembic/versions/add_search_sites_columns.py b/app/alembic/versions/add_search_sites_columns.py
new file mode 100644
index 0000000..703755e
--- /dev/null
+++ b/app/alembic/versions/add_search_sites_columns.py
@@ -0,0 +1,49 @@
+"""Add missing columns to search_sites table
+
+Revision ID: add_search_sites_columns
+Revises: merge_heads
+Create Date: 2025-11-24
+
+"""
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "add_search_sites_columns"
+down_revision: str | None = "merge_heads"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    """Add debug_enabled, price_selector, search_url, product_link_selector columns to search_sites."""
+    # Add debug_enabled column
+    op.add_column(
+        "search_sites",
+        sa.Column("debug_enabled", sa.Boolean(), server_default="false", nullable=False),
+    )
+    # Add price_selector column
+    op.add_column(
+        "search_sites",
+        sa.Column("price_selector", sa.String(), nullable=True),
+    )
+    # Add search_url column
+    op.add_column(
+        "search_sites",
+        sa.Column("search_url", sa.String(), nullable=True),
+    )
+    # Add product_link_selector column
+    op.add_column(
+        "search_sites",
+        sa.Column("product_link_selector", sa.String(), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    """Remove added columns from search_sites."""
+    op.drop_column("search_sites", "product_link_selector")
+    op.drop_column("search_sites", "search_url")
+    op.drop_column("search_sites", "price_selector")
+    op.drop_column("search_sites", "debug_enabled")