diff --git a/scons.spec b/scons.spec
index 11ca19e..9334f99 100644
--- a/scons.spec
+++ b/scons.spec
@@ -1,5 +1,5 @@
 Name:          scons
-Version:       3.1.1
+Version:       3.1.2
 Release:       1mamba
 Summary:       An Open Source software construction tool
 Group:         Development/Tools
@@ -52,6 +52,9 @@ rm -f .packlist
 %doc LICENSE.txt
 
 %changelog
+* Tue Dec 31 2019 Automatic Build System <autodist@mambasoft.it> 3.1.2-1mamba
+- automatic version update by autodist
+
 * Fri Aug 30 2019 Automatic Build System <autodist@mambasoft.it> 3.1.1-1mamba
 - automatic version update by autodist