diff --git a/double-conversion.spec b/double-conversion.spec
index a01d2fb..668a6ad 100644
--- a/double-conversion.spec
+++ b/double-conversion.spec
@@ -1,5 +1,5 @@
 Name:          double-conversion
-Version:       3.1.6
+Version:       3.1.7
 Release:       1mamba
 Summary:       Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles
 Group:         System/Libraries
@@ -73,6 +73,9 @@ This package contains libraries and header files for developing applications tha
 
 
 %changelog
+* Thu Dec 23 2021 Automatic Build System <autodist@mambasoft.it> 3.1.7-1mamba
+- automatic version update by autodist
+
 * Sun Dec 05 2021 Automatic Build System <autodist@mambasoft.it> 3.1.6-1mamba
 - automatic version update by autodist