diff --git a/Project.toml b/Project.toml
index f39cb6b..472cf43 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "Thermochron"
 uuid = "b9a8379e-ee1a-4388-b7ca-7852af1cef08"
 authors = ["C. Brenhin Keller and collaborators"]
-version = "0.5.0"
+version = "0.4.7"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"