diff --git a/alembic/versions/c6b1d8f2a9e3_add_relay_node_to_packet_seen.py b/alembic/versions/c6b1d8f2a9e3_add_relay_node_to_packet_seen.py
new file mode 100644
index 0000000..79013dd
--- /dev/null
+++ b/alembic/versions/c6b1d8f2a9e3_add_relay_node_to_packet_seen.py
@@ -0,0 +1,39 @@
+"""Add relay_node column to packet_seen
+
+Revision ID: c6b1d8f2a9e3
+Revises: 4f1d2a9c8b71
+Create Date: 2026-03-05 00:00:00.000000
+
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "c6b1d8f2a9e3"
+down_revision: str | None = "4f1d2a9c8b71"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    packet_seen_columns = {col["name"] for col in inspector.get_columns("packet_seen")}
+
+    if "relay_node" not in packet_seen_columns:
+        with op.batch_alter_table("packet_seen", schema=None) as batch_op:
+            batch_op.add_column(sa.Column("relay_node", sa.BigInteger(), nullable=True))
+
+
+def downgrade() -> None:
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    packet_seen_columns = {col["name"] for col in inspector.get_columns("packet_seen")}
+
+    if "relay_node" in packet_seen_columns:
+        with op.batch_alter_table("packet_seen", schema=None) as batch_op:
+            batch_op.drop_column("relay_node")