diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -91,3 +91,4 @@ c5786bac85297c012c4add4464c5c8886e95e151
 50cf7822bd80eb2111765202797f20937bffb82b v5.2.0
 a05b3b360e523c91f24acf251898a9591311f8af v5.2.1
 77c2b73602b95407df621bcd04aa74c0c3ef0944 v5.3.0
+bd23a920e83f3bf79bddc662ed223266a3e2fccd v5.3.1