release-1.3.1 tag
diff --git a/.hgtags b/.hgtags
index 9b820ec..a677839 100644
--- a/.hgtags
+++ b/.hgtags
@@ -336,3 +336,4 @@
 0f0b425659e0b26f5bc8ea14a42dbf34de2eaba6 release-1.1.19
 f582d662cc408eb7a132c21f4b298b71d0701abb release-1.2.0
 9ee68d629722f583d43d92271f2eb84281afc630 release-1.3.0
+61b6a3438afef630774e568eefd89c53e3b93287 release-1.3.1