diff --git a/Project.toml b/Project.toml
index 497642ad..ed334f8e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "FeynmanDiagram"
 uuid = "e424a512-dbd9-41ff-9883-094748823e72"
 authors = ["Kun Chen", "Pengcheng Hou", "Daniel Cerkoney"]
-version = "0.2.7"
+version = "0.2.8"
 
 [deps]
 AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"