diff --git a/.hgtags b/.hgtags
index f7766f8..2647274 100644
--- a/.hgtags
+++ b/.hgtags
@@ -18,3 +18,4 @@
 4ebe09b07e3021f1a63b459903ec58f162183b26 release-0.1.17
 31ff3e943e1675a2caf745ba7a981244445d4c98 release-0.1.18
 45a460f82aec80b0f61136aa09f412436d42203a release-0.1.19
+0f836f0288eee4980f57736d50a7a60fa082d8e9 release-0.1.20