diff --git a/double-conversion.spec b/double-conversion.spec
index ae8afb5..a01d2fb 100644
--- a/double-conversion.spec
+++ b/double-conversion.spec
@@ -1,5 +1,5 @@
 Name:          double-conversion
-Version:       3.1.5
+Version:       3.1.6
 Release:       1mamba
 Summary:       Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles
 Group:         System/Libraries
@@ -12,13 +12,11 @@ Source:        https://github.com/google/double-conversion.git/v%{version}/doubl
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: ldconfig
 BuildRequires: libgcc
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles.
@@ -75,5 +73,8 @@ This package contains libraries and header files for developing applications tha
 
 
 %changelog
+* Sun Dec 05 2021 Automatic Build System <autodist@mambasoft.it> 3.1.6-1mamba
+- automatic version update by autodist
+
 * Tue May 12 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 3.1.5-1mamba
 - package created using the webbuild interface