diff --git a/ladspa.spec b/ladspa.spec
index d439b22..5b9017f 100644
--- a/ladspa.spec
+++ b/ladspa.spec
@@ -1,5 +1,5 @@
 Name:          ladspa
-Version:       1.15
+Version:       1.16
 Release:       1mamba
 Summary:       Linux Audio Developer's Simple Plugin API (LADSPA)
 Group:         System/Libraries
@@ -10,11 +10,12 @@ URL:           http://www.ladspa.org/
 Source:        http://www.ladspa.org/download/ladspa_sdk_%{version}.tgz
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
+#libdl.so.2()(64bit): /usr/lib64/libdl.so: file not owned by any package
 BuildRequires: glibc-devel
 BuildRequires: libgcc
+BuildRequires: libsndfile-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
-BuildRoot:     %{_tmppath}/%{name}-%{version}-buildroot
 
 %description
 Many audio synthesis and recording packages are in use or in development on Linux. These work in many different ways. LADSPA provides a standard way for `plugin' audio processors to be used with a wide range of these packages.
@@ -57,6 +58,9 @@ make -C src install \
 %{_libdir}/ladspa/*.so
 
 %changelog
+* Mon Sep 06 2021 Automatic Build System <autodist@mambasoft.it> 1.16-1mamba
+- automatic version update by autodist
+
 * Thu Apr 25 2019 Automatic Build System <autodist@mambasoft.it> 1.15-1mamba
 - automatic version update by autodist