diff --git a/jbig2dec.spec b/jbig2dec.spec
index de79e99..fdb338a 100644
--- a/jbig2dec.spec
+++ b/jbig2dec.spec
@@ -1,5 +1,5 @@
 Name:          jbig2dec
-Version:       0.17
+Version:       0.18
 Release:       1mamba
 Summary:       A decoder implementation of the JBIG2 image compression format.
 Group:         Applications/Graphics
@@ -7,7 +7,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://jbig2dec.com/
-Source:        https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs950/jbig2dec-%{version}.tar.gz
+Source:        https://github.com/ArtifexSoftware/jbig2dec.git/%{version}/jbig2dec-%{version}.tar.bz2
 License:       Affero GNU Public License
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -41,6 +41,7 @@ This package contains libraries and header files for developing applications tha
 
 %prep
 %setup -q
+./autogen.sh
 
 %build
 %configure
@@ -76,5 +77,8 @@ This package contains libraries and header files for developing applications tha
 %doc CHANGES README
 
 %changelog
+* Sat Apr 18 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.18-1mamba
+- update to 0.18
+
 * Tue Nov 05 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 0.17-1mamba
 - package created using the webbuild interface