diff --git a/gap-sgpviz.spec b/gap-sgpviz.spec
index 6481106..17d963d 100644
--- a/gap-sgpviz.spec
+++ b/gap-sgpviz.spec
@@ -24,7 +24,7 @@ License:        GPL-2.0+
 Group:          Productivity/Scientific/Math
 URL:            http://cmup.fc.up.pt/cmup/mdelgado/sgpviz/
 
-Source:         ftp://ftp.gap-system.org/pub/gap/gap4/tar.bz2/packages/sgpviz-%version.tar.bz2
+Source:         https://www.gap-system.org/pub/gap/gap4/tar.bz2/packages/sgpviz-%version.tar.bz2
 BuildArch:      noarch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  gap-rpm-devel
diff --git a/sgpviz-0.998.tar.bz2 b/sgpviz-0.998.tar.bz2
index 4ea0050..d941839 100644
--- a/sgpviz-0.998.tar.bz2
+++ b/sgpviz-0.998.tar.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:7176053743a7315d92910fdc513f9af405e1aa8beafdb4724e077e4832151157
-size 499119
+oid sha256:c04e29278e547b90c92a6eb998faa3af9bbbf6717f024108b8c15610243168ea
+size 499017