diff --git a/.hgtags b/.hgtags
index cca250bb4..d84baa13b 100644
--- a/.hgtags
+++ b/.hgtags
@@ -15,3 +15,4 @@ b17f2928291eec5bf5b1c59a4a5fd583f704ac40 release ns-3.0.12
 79dba133b5f8a2d6f6f678a22e8519bc155e6a4e release ns-3.0.13
 8869a79a391f49d0c787f0558cc9329b4e7ee40e release candidate ns-3.1-RC1
 951296e9a277e14113a0d3ba86a9688b222569ae release ns-3.1-RC2
+ea16c44eb90db579c83d3434fc8a960be506a7f5 release ns-3.1-RC3