diff --git a/core/src/main/resources/db/migration/V4__clean_up_grade_table.sql b/core/src/main/resources/db/migration/V4__clean_up_grade_table.sql
new file mode 100644
index 0000000000..4d4e43340c
--- /dev/null
+++ b/core/src/main/resources/db/migration/V4__clean_up_grade_table.sql
@@ -0,0 +1 @@
+DROP TABLE IF EXISTS `grade`;
\ No newline at end of file