diff --git a/ocaml-calendar.spec b/ocaml-calendar.spec
index a8e5fa8..e4c6968 100644
--- a/ocaml-calendar.spec
+++ b/ocaml-calendar.spec
@@ -1,10 +1,10 @@
 Name:           ocaml-calendar
 Version:        2.04
-Release:        18
+Release:        19
 Summary:        An Objective Caml library for handling dates and times
 License:        LGPLv2
 URL:            http://calendar.forge.ocamlcore.org/
-Source0:        https://forge.ocamlcore.org/frs/download.php/1481/calendar-2.04.tar.gz
+Source0:        https://download.ocamlcore.org/calendar/calendar/%{version}/calendar-%{version}.tar.gz
 
 Patch0001:      calendar-2.03.2-enable-debug.patch
 
@@ -55,5 +55,8 @@ make install
 %{_libdir}/ocaml/calendar/*.{cmx,mli}
 
 %changelog
+* Tue Nov 22 2022 xu_ping<xuping33@h-partners.com> - 2.04-19
+- Modify invalid source
+
 * Wed Feb 26 2020 zhouyihang<zhouyihang1@huawei.com> - 2.04-18
 - Package init