diff --git a/libctl.spec b/libctl.spec
index 92aab88..85b00ae 100644
--- a/libctl.spec
+++ b/libctl.spec
@@ -1,13 +1,13 @@
 Name:          libctl
-Version:       3.2.1
-Release:       3mamba
+Version:       4.5.1
+Release:       1mamba
 Summary:       A free Guile-based library implementing flexible control files for scientific simulations
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://ab-initio.mit.edu/wiki/index.php/Libctl
-Source:        http://ab-initio.mit.edu/libctl/libctl-%{version}.tar.gz
+URL:           https://libctl.readthedocs.io/en/latest/
+Source:        https://github.com/NanoComp/libctl.git/v%{version}/libctl-%{version}.tar.bz2
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -15,11 +15,9 @@ BuildRequires: libffi-devel
 BuildRequires: libgc-devel
 BuildRequires: libgmp-devel
 BuildRequires: libguile-devel
-BuildRequires: libltdl-devel
 BuildRequires: libunistring-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libunistring-devel >= 0.9.6-1mamba
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 libctl is a free Guile-based library implementing flexible control files for scientific simulations. It was written to support our MIT Photonic Bands and Meep software, but has proven useful in other programs too.
@@ -36,6 +34,7 @@ This package contains libraries and header files for developing applications tha
 
 %prep
 %setup -q
+./autogen.sh
 
 %build
 %configure \
@@ -69,9 +68,7 @@ This package contains libraries and header files for developing applications tha
 %files devel
 %defattr(-,root,root)
 %{_bindir}/gen-ctl-io
-%{_includedir}/ctl.h
-%{_includedir}/ctlgeom-types.h
-%{_includedir}/ctlgeom.h
+%{_includedir}/ctl*.h
 %{_libdir}/libctl.a
 %{_libdir}/libctl.la
 %{_libdir}/libctl.so
@@ -79,9 +76,14 @@ This package contains libraries and header files for developing applications tha
 %{_libdir}/libctlgeom.la
 %{_libdir}/libctlgeom.so
 %{_mandir}/man1/gen-ctl-io.1*
-%doc ChangeLog NEWS README TODO
 
 %changelog
+* Thu Feb 03 2022 Automatic Build System <autodist@mambasoft.it> 4.5.1-1mamba
+- automatic version update by autodist
+
+* Sun Dec 26 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.5.0-1mamba
+- update to 4.5.0
+
 * Sun May 15 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 3.2.1-3mamba
 - rebuilt by autoport with build requirements: libunistring-devel>=0.9.6-1mamba