diff --git a/.hgtags b/.hgtags
index 4cbb907..1389e22 100644
--- a/.hgtags
+++ b/.hgtags
@@ -13,3 +13,4 @@ cf814e71949217197305a24ea8c884d8e728695e 0.1
 3b0b45a6d5478087250efcc1f8a88449965c6a03 0.2
 d691b2b8090e2ea0f29a24d3be30eda6466e3f40 0.3
 ae25d6eaa753a1e37f43935e524eda72358a1c7a 0.4
+ac528246642dc1e05cb6d0ae91542f7fb7d02e41 0.4.1