diff --git a/.gitignore b/.gitignore
index b1edaba..076cd4e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,4 @@ diffstat-1.51.tgz
 /diffstat-1.61.tgz
 /diffstat-1.62.tgz
 /diffstat-1.63.tgz
+/diffstat-1.64.tgz
diff --git a/diffstat-1.63.tgz.asc b/diffstat-1.63.tgz.asc
deleted file mode 100644
index ec25d43..0000000
--- a/diffstat-1.63.tgz.asc
+++ /dev/null
@@ -1,7 +0,0 @@
------BEGIN PGP SIGNATURE-----
-Comment: See https://invisible-island.net/public/public.html for info
-
-iF0EABECAB0WIQTFIEjAwHSP7iJ9R6JwI1Pg9+SO2wUCXeGYRQAKCRBwI1Pg9+SO
-29QtAJ4jcpgT5E+3G9dgHnT0wpeOI69t4ACeIrzV2f57MMoOyOhGvLhxRreTszo=
-=6K+F
------END PGP SIGNATURE-----
diff --git a/diffstat-1.64.tgz.asc b/diffstat-1.64.tgz.asc
new file mode 100644
index 0000000..b253a92
--- /dev/null
+++ b/diffstat-1.64.tgz.asc
@@ -0,0 +1,7 @@
+-----BEGIN PGP SIGNATURE-----
+Comment: See https://invisible-island.net/public/public.html for info
+
+iF0EABECAB0WIQTFIEjAwHSP7iJ9R6JwI1Pg9+SO2wUCX/5J8gAKCRBwI1Pg9+SO
+22siAKCw/q78lFA1W9/ubs/aVbnCI7K9EgCgsuAIvsusldq/GFpdyDL4M1eH5zo=
+=4xNe
+-----END PGP SIGNATURE-----
diff --git a/diffstat.spec b/diffstat.spec
index 3c3e24a..3e99d99 100644
--- a/diffstat.spec
+++ b/diffstat.spec
@@ -1,10 +1,10 @@
 Summary: A utility which provides statistics based on the output of diff
 Name: diffstat
-Version: 1.63
+Version: 1.64
 Release: 3%{?dist}
 License: MIT
-URL: http://invisible-island.net/diffstat
-Source0: ftp://ftp.invisible-island.net/pub/diffstat/%{name}-%{version}.tgz
+URL: https://invisible-island.net/diffstat
+Source0: https://invisible-mirror.net/archives/diffstat/%{name}-%{version}.tgz
 # Taken from diffstat.c.
 Source1: COPYING
 
@@ -42,6 +42,9 @@ make check
 %{_mandir}/*/*
 
 %changelog
+* Wed Jan 13 2021 Tim Waugh <twaugh@redhat.com> - 1.64-1
+- Update to 1.64.
+
 * Mon Jul 27 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.63-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
 
diff --git a/sources b/sources
index b36c17b..6a73637 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (diffstat-1.63.tgz) = e1319f95088e615d442b0b02af922605d0c76e15ba2f0e8cf8c4db56949ac63f4a6e3e42099254480b9aab388cbd6550f515ed4d4995c6723d24f392d1872b16
+SHA512 (diffstat-1.64.tgz) = d647477beb49b0999c5de41d084da827528571c4848f40c69c2d64d060fc89848d15d03d59b1a31d79f02180f81d92cdf6e19d0172482bc569cf2a87476f12cf