diff --git a/thunderbird.spec b/thunderbird.spec
index fbbdf6c..a182172 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -10,7 +10,7 @@
 %define        source_dir                  comm-esr%(echo %version | cut -d. -f1)
 
 Name:          thunderbird
-Version:       38.0.1
+Version:       38.1.0
 Release:       1mamba
 Summary:       Mozilla Thunderbird email, RSS, and newsgroup client
 Group:         Graphical Desktop/Applications/Internet
@@ -1237,6 +1237,9 @@ Chinese (Traditional) language support for Thunderbird.
 %{tbdir}/extensions/langpack-zh-TW@thunderbird.mozilla.org/
 
 %changelog
+* Sat Jul 11 2015 Automatic Build System <autodist@mambasoft.it> 38.1.0-1mamba
+- automatic version update by autodist
+
 * Sat Jun 27 2015 Automatic Build System <autodist@mambasoft.it> 38.0.1-1mamba
 - automatic version update by autodist