diff --git a/firefox.spec b/firefox.spec
index f29b803..19c2fc4 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -17,8 +17,8 @@
 %define        pkgver %(echo %version | tr . _)
 
 Name:          firefox
-Version:       86.0.1
-Release:       2mamba
+Version:       87.0
+Release:       1mamba
 Epoch:         1
 Summary:       The next generation browsing technology from mozilla.org
 Group:         Graphical Desktop/Applications/Internet
@@ -504,7 +504,7 @@ includedir=%{firefoxincludedir}
 
 Name: Mozilla Plug-In API
 Description: Mozilla Plug-In API
-Version: %{version}
+Version: 87.0
 
 Cflags: -I\${includedir} -DXP_UNIX
 _EOF
@@ -625,6 +625,9 @@ fi
 %{_libdir}/pkgconfig/mozilla-plugin.pc
 
 %changelog
+* Wed Mar 24 2021 Automatic Build System <autodist@mambasoft.it> 87.0-1mamba
+- automatic version update by autodist
+
 * Mon Mar 15 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 86.0.1-2mamba
 - langpacks support