diff --git a/libgeos.spec b/libgeos.spec
index bef8fab..0d88acd 100644
--- a/libgeos.spec
+++ b/libgeos.spec
@@ -1,5 +1,5 @@
 Name:          libgeos
-Version:       3.9.0
+Version:       3.9.1
 Release:       1mamba
 Summary:       GEOS (Geometry Engine - Open Source) is a C++ port of the  Java Topology Suite (JTS)
 Group:         System/Libraries
@@ -110,6 +110,9 @@ find %{buildroot} -name '*.a' -exec rm -f {} ';'
 %doc ChangeLog NEWS
 
 %changelog
+* Fri Feb 12 2021 Automatic Build System <autodist@mambasoft.it> 3.9.1-1mamba
+- automatic version update by autodist
+
 * Sun Feb 07 2021 Automatic Build System <autodist@mambasoft.it> 3.9.0-1mamba
 - automatic version update by autodist