diff --git a/.hgtags b/.hgtags
index a7b59f10..94510a69 100644
--- a/.hgtags
+++ b/.hgtags
@@ -8,3 +8,4 @@
 a4fce231a58efc050bfca0304ef4a2f880f55a78 0.4
 f6b20b8853255ccbc8e3bf29fd800b5500af02ff 0.1
 0d9e4fc8afd90f7c75c19a4beaa291a7e3f8f129 0.5.1
+246721b8546e271e3cb055116deb0e7fb721d3ff 0.5.2