diff --git a/thunderbird.xml b/thunderbird.xml
index 20cd80633c975d8dacc59f679e19803223a4a151..bdcad8e2c6f66382dab8eea4cf8761dcaeec458b 100755
--- a/thunderbird.xml
+++ b/thunderbird.xml
@@ -7,7 +7,7 @@
 			 we add in chemistry-prefs.js. Thus, we tie that to a version, and please test carefully when
        upgrading -->
 
- <variable name="version" value="52.5.2" />
+ <variable name="version" value="52.6.0" />
  <variable name="prefsversion" value="52" />
  <check type="uninstall" condition="exists" path="Mozilla Thunderbird %version%.*" />