diff --git a/bikram/constants.py b/bikram/constants.py
index cb8215c..e5aa726 100644
--- a/bikram/constants.py
+++ b/bikram/constants.py
@@ -170,7 +170,7 @@
     (2078, (None, 31, 31, 31, 32, 31, 31, 30, 29, 30, 29, 30, 30)),
     (2079, (None, 31, 31, 32, 31, 31, 31, 30, 29, 30, 29, 30, 30)),
     (2080, (None, 31, 32, 31, 32, 31, 30, 30, 30, 29, 29, 30, 30)),
-    (2081, (None, 31, 31, 32, 32, 31, 30, 30, 30, 29, 30, 30, 30)),
+    (2081, (None, 31, 32, 31, 32, 31, 30, 30, 30, 29, 30, 29, 31)),
     (2082, (None, 30, 32, 31, 32, 31, 30, 30, 30, 29, 30, 30, 30)),
     (2083, (None, 31, 31, 32, 31, 31, 30, 30, 30, 29, 30, 30, 30)),
     (2084, (None, 31, 31, 32, 31, 31, 30, 30, 30, 29, 30, 30, 30)),