diff --git a/data/old_grade.txt b/data/old_grade.txt
index 71ab05a..f86ff71 100644
--- a/data/old_grade.txt
+++ b/data/old_grade.txt
@@ -1 +1 @@
-4ae27b55909fd50169dfc5bb204e823d
\ No newline at end of file
+31673bb3ab980a196e3035b96bc636fa
\ No newline at end of file