diff --git a/userspace-rcu.spec b/userspace-rcu.spec
index 2502bda..8259fa8 100644
--- a/userspace-rcu.spec
+++ b/userspace-rcu.spec
@@ -1,6 +1,6 @@
 Name:          userspace-rcu
-Version:       0.13.0
-Release:       2mamba
+Version:       0.13.1
+Release:       1mamba
 Summary:       A userspace RCU (read-copy-update) library
 Group:         System/Libraries
 Vendor:        openmamba
@@ -77,6 +77,9 @@ This package contains libraries and header files for developing applications tha
 %doc ChangeLog README.md
 
 %changelog
+* Thu Jan 06 2022 Automatic Build System <autodist@mambasoft.it> 0.13.1-1mamba
+- automatic version update by autodist
+
 * Tue Oct 12 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.13.0-2mamba
 - rebuilt to fix liburcu.so symlink