diff --git a/migrations/postgresql/2024-01-12-210182_change_attachment_size/up.sql b/migrations/postgresql/2024-01-12-210182_change_attachment_size/up.sql
index 4ad2741c..fcd7189c 100644
--- a/migrations/postgresql/2024-01-12-210182_change_attachment_size/up.sql
+++ b/migrations/postgresql/2024-01-12-210182_change_attachment_size/up.sql
@@ -1 +1,3 @@
-ALTER TABLE attachments MODIFY file_size BIGINT NOT NULL;
+ALTER TABLE attachments
+ALTER COLUMN file_size TYPE BIGINT,
+ALTER COLUMN file_size SET NOT NULL;