diff --git a/backend/src/main/resources/db/migration/V5__modify_member_social_id.sql b/backend/src/main/resources/db/migration/V5__modify_member_social_id.sql
new file mode 100644
index 000000000..0e0091e25
--- /dev/null
+++ b/backend/src/main/resources/db/migration/V5__modify_member_social_id.sql
@@ -0,0 +1,2 @@
+alter table member
+    modify social_id varchar(45) null;