diff --git a/Project.toml b/Project.toml
index 5040ad6..dbfb471 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "Batsrus"
 uuid = "e74ebddf-6ac1-4047-a0e5-c32c99e57753"
 authors = ["Hongyang Zhou <hyzhou@umich.edu>"]
-version = "0.4.0"
+version = "0.4.1"
 
 [deps]
 Dierckx = "39dd38d3-220a-591b-8e3c-4c3a8c710a94"