diff --git a/backend/alembic/versions/b054_add_campaign_approval_fields.py b/backend/alembic/versions/b054_add_campaign_approval_fields.py
new file mode 100644
index 0000000..bd2bbb6
--- /dev/null
+++ b/backend/alembic/versions/b054_add_campaign_approval_fields.py
@@ -0,0 +1,36 @@
+"""Add approved_by, approved_at, rejection_reason to campaigns.
+
+Revision ID: b054
+Revises: b053
+Create Date: 2026-07-02
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+revision = "b054"
+down_revision = "b053"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "campaigns",
+        sa.Column("approved_by", postgresql.UUID(as_uuid=True), nullable=True),
+    )
+    op.add_column("campaigns", sa.Column("approved_at", sa.DateTime(), nullable=True))
+    op.add_column("campaigns", sa.Column("rejection_reason", sa.Text(), nullable=True))
+    op.create_foreign_key(
+        "fk_campaigns_approved_by_users",
+        "campaigns", "users",
+        ["approved_by"], ["id"],
+        ondelete="SET NULL",
+    )
+
+
+def downgrade() -> None:
+    op.drop_constraint("fk_campaigns_approved_by_users", "campaigns", type_="foreignkey")
+    op.drop_column("campaigns", "rejection_reason")
+    op.drop_column("campaigns", "approved_at")
+    op.drop_column("campaigns", "approved_by")