diff --git a/.hgtags b/.hgtags
index 13ceb0787..d863dacaf 100644
--- a/.hgtags
+++ b/.hgtags
@@ -286,3 +286,4 @@ aed68639d4eb6afe944b7fb50499c16f7f3f503c release-0.8.36
 265b7fd2ae21c75bbffa5115b83a0123d6c4acb4 release-0.8.37
 fa5f1ca353c0c5aa5415f51d72fd7bbcc02d1ed7 release-0.8.38
 af10bf9d4c6532850aa1f70cdf7504bd109b284c release-0.8.39
+4846ec9f83cb5bc4c8519d5641b35fb9b190430c release-0.8.40