diff --git a/backend/migrations/000005_widen_osdb_number.down.sql b/backend/migrations/000005_widen_osdb_number.down.sql
new file mode 100644
index 0000000..02d6b17
--- /dev/null
+++ b/backend/migrations/000005_widen_osdb_number.down.sql
@@ -0,0 +1 @@
+ALTER TABLE fruits ALTER COLUMN osdb_number TYPE VARCHAR(50);