diff --git a/db/knex_migrations/2026-07-22-0000-fix-stat-daily-overflow.js b/db/knex_migrations/2026-07-22-0000-fix-stat-daily-overflow.js
new file mode 100644
index 000000000..b8f807094
--- /dev/null
+++ b/db/knex_migrations/2026-07-22-0000-fix-stat-daily-overflow.js
@@ -0,0 +1,13 @@
+exports.up = function (knex) {
+    return knex.schema.alterTable("stat_daily", function (table) {
+        table.integer("up").unsigned().notNullable().alter();
+        table.integer("down").unsigned().notNullable().alter();
+    });
+};
+
+exports.down = function (knex) {
+    return knex.schema.alterTable("stat_daily", function (table) {
+        table.smallint("up").notNullable().alter();
+        table.smallint("down").notNullable().alter();
+    });
+};