diff --git a/jemalloc.spec b/jemalloc.spec
index e5430bc..6bc0dfd 100644
--- a/jemalloc.spec
+++ b/jemalloc.spec
@@ -1,13 +1,14 @@
 Name:          jemalloc
-Version:       4.2.1
-Release:       2mamba
+Version:       5.2.1
+Release:       1mamba
 Summary:       A general purpose malloc(3) implementation
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.canonware.com/jemalloc/
-Source:        http://www.canonware.com/download/jemalloc/jemalloc-%{version}.tar.bz2
+Source:        https://github.com/jemalloc/jemalloc.git/%{version}/jemalloc-%{version}.tar.bz2
+#Source:        http://www.canonware.com/download/jemalloc/jemalloc-%{version}.tar.bz2
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -39,6 +40,8 @@ This package contains libraries and header files for developing applications tha
 %prep
 %setup -q
 
+./autogen.sh
+
 %build
 %configure
 %make
@@ -78,6 +81,9 @@ This package contains libraries and header files for developing applications tha
 %doc ChangeLog README
 
 %changelog
+* Sat Oct 26 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 5.2.1-1mamba
+- update to 5.2.1
+
 * Wed Jun 15 2016 Automatic Build System <autodist@mambasoft.it> 4.2.1-2mamba
 - automatic version update by autodist