diff --git a/internal/migration/4_change_discord_user_id_length.sql b/internal/migration/4_change_discord_user_id_length.sql
new file mode 100644
index 0000000..cb93301
--- /dev/null
+++ b/internal/migration/4_change_discord_user_id_length.sql
@@ -0,0 +1,5 @@
+-- +goose Up
+ALTER TABLE game MODIFY COLUMN discord_user_id VARCHAR(255) NOT NULL;
+
+-- +goose Down
+ALTER TABLE game MODIFY COLUMN discord_user_id CHAR(18) NOT NULL;