diff --git a/thunderbird.xml b/thunderbird.xml
index d8c7e115d012724dcdc2c09b37f9b3e281c3e9b2..5155b8c306d769a8dbc95176b8f651a3661298f7 100755
--- a/thunderbird.xml
+++ b/thunderbird.xml
@@ -7,8 +7,8 @@
 			 we add in chemistry-prefs.js. Thus, we tie that to a version, and please test carefully when
        upgrading -->
 
- <variable name="version" value="31.6.0" />  
- <variable name="prefsversion" value="31" />
+ <variable name="version" value="38.0.1" />  
+ <variable name="prefsversion" value="38" />
  <check type="uninstall" condition="exists" path="Mozilla Thunderbird %version%.*" />
 
   <install cmd='"%software%\thunderbird\Thunderbird Setup %version%.exe" -ms' />