tag 3.1.3rc1
diff --git a/.hgtags b/.hgtags
index dcc7172..06e2095 100644
--- a/.hgtags
+++ b/.hgtags
@@ -83,3 +83,4 @@
 21ac16cb23077b1e7fa34dffeb53f6aafe4b336d v3.1.1
 149b8b87514d10416b598884db5f74651f625b38 v3.1.2rc1
 960efa327c5d9c18df995437b0ac550cb89c9f85 v3.1.2
+d18e9d71f369d8211f6ac87252c6d3211f9bd09f v3.1.3rc1