diff --git a/calcurse.spec b/calcurse.spec
index f71e4f1..d0977f8 100644
--- a/calcurse.spec
+++ b/calcurse.spec
@@ -22,9 +22,9 @@ Release:        0
 Summary:        Text-based Organizer
 License:        BSD-2-Clause
 Group:          Productivity/Office/Organizers
-Url:            http://calcurse.org
-Source:         http://calcurse.org/files/%{name}-%{version}.tar.gz
-Source1:        http://calcurse.org/files/%{name}-%{version}.tar.gz.asc
+Url:            https://calcurse.org
+Source:         https://calcurse.org/files/%{name}-%{version}.tar.gz
+Source1:        https://calcurse.org/files/%{name}-%{version}.tar.gz.asc
 Source2:        %{name}.keyring
 Source3:        %{name}.desktop
 BuildRequires:  gettext-devel