diff --git a/Project.toml b/Project.toml
index e0a0ddcc..418ba769 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "DalitzPlot"
 uuid = "d7968580-7d6f-4f79-bc09-617baf523457"
 authors = ["junhe@njnu.edu.cn"]
-version = "0.1.3"
+version = "0.1.1"
 
 [deps]
 Colors = "5ae59095-9a9b-59fe-a467-6f913c188581"