diff --git a/sql/branch.sql b/sql/branch.sql
new file mode 100644
index 0000000000..4fa12fd795
--- /dev/null
+++ b/sql/branch.sql
@@ -0,0 +1,4 @@
+BEGIN;
+    ALTER TABLE participants DROP COLUMN email;
+    DROP TYPE email_address_with_confirmation;
+END;