diff --git a/sources b/sources
index eebd895..9424328 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-69c635070d38c884682bfd4657031a8d  Date-Calc-6.4.tar.gz
+SHA512 (Date-Calc-6.4.tar.gz) = e2d0cb2b041afedb10033700e27075f01987abc763a59034a10a9fc0bb059706cc959f6d76fe1fc21ced4b547475f62a8c37ad38e8e49f7453d78b17082c0671