diff --git a/.hgtags b/.hgtags
index 6c9db437..a04ed9de 100644
--- a/.hgtags
+++ b/.hgtags
@@ -88,3 +88,4 @@ fef6e5d66e2975132a0ca57ee663c0631c5580a8 RECOLL-1_05
 9ca25a07ca5f166fe64feae72436bec7339e2b13 RECOLL_1_14_2
 1624035e6c5b822609e4c7d93136bd20d66057a9 RECOLL_1_14_3
 34794c522892e80c619ca9d01578c2053efc06af RECOLL_1_15_0
+0f926dd325961e59c9620bd7584188d73564a36d RECOLL_1_15_1