diff --git a/data/old_grade.txt b/data/old_grade.txt
index fe96eee..3a162b9 100644
--- a/data/old_grade.txt
+++ b/data/old_grade.txt
@@ -1 +1 @@
-5b2cd7d27af59216f3885ec04a44a8a3
\ No newline at end of file
+f3648ee58c175b6bb1f97e2e3eb6c9fd
\ No newline at end of file