diff --git a/thunderbird.spec b/thunderbird.spec
index c09a9e0..01d9186 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -8,7 +8,7 @@
 #%define        source_dir                  comm-esr%(echo %version | cut -d. -f1)
 
 Name:          thunderbird
-Version:       102.8.0
+Version:       102.9.0
 Release:       1mamba
 Summary:       Mozilla Thunderbird email, RSS, and newsgroup client
 Group:         Graphical Desktop/Applications/Internet
@@ -30,7 +30,7 @@ Patch17:       thunderbird-91.5.1-libwayland-1.20.0.patch
 Patch18:       thunderbird-102.3.2-cbindgen-0.24.patch
 License:       GPL,MPL 1.1,LGPL
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: xulrunner-devel
+BuildRequires: firefox-devel
 BuildRequires: glibc-devel
 BuildRequires: libX11-devel
 BuildRequires: libXcomposite-devel
@@ -432,6 +432,9 @@ fi
 %exclude %{_libdir}/thunderbird/distribution/extensions/langpack-*@thunderbird.mozilla.org.xpi
 
 %changelog
+* Thu Mar 16 2023 Automatic Build System <autodist@mambasoft.it> 102.9.0-1mamba
+- automatic version update by autodist
+
 * Thu Feb 16 2023 Automatic Build System <autodist@mambasoft.it> 102.8.0-1mamba
 - automatic version update by autodist