diff --git a/libtool/libtool.nm b/libtool/libtool.nm
index 4467fbf4b..e95e7ff30 100644
--- a/libtool/libtool.nm
+++ b/libtool/libtool.nm
@@ -4,11 +4,11 @@
 ###############################################################################
 
 name       = libtool
-version    = 2.4.6
-release    = 2
+version    = 2.4.7
+release    = 1
 
 groups     = System/Libraries
-url        = http://www.gnu.org/software/libtool/
+url        = https://www.gnu.org/software/libtool/
 license    = GPLv2+ and LGPLv2+ and GFDL
 summary    = Runtime libraries for GNU Libtool Dynamic Module Loader.
 
@@ -19,14 +19,15 @@ description
 	interface which simplifies the process of using shared libraries.
 end
 
-source_dl  = http://ftp.gnu.org/gnu/libtool/
-sources    = %{thisapp}.tar.gz
+source_dl  = https://ftp.gnu.org/gnu/libtool/
+sources    = %{thisapp}.tar.xz
 
 build
 	requires
 		autoconf
 		automake
 		m4
+		perl(Data::Dumper)
 	end
 end