diff --git a/thunderbird.xml b/thunderbird.xml
index 8b692ce588daafd81072384a643e2dd32a892edc..a2af6b42ee8f4645b27033c6ebe093c1f8a4f85d 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="52.9.1" />
- <variable name="prefsversion" value="52" />
+ <variable name="version" value="60.0" />
+ <variable name="prefsversion" value="60" />
  <check type="uninstall" condition="exists" path="Mozilla Thunderbird %version%.*" />
 
   <install cmd='"%software%\thunderbird\Thunderbird Setup %version%.exe" -ms' />