diff --git a/Project.toml b/Project.toml
index 09d95b5..2d25b2e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "KmerAnalysis"
 uuid = "a20136b7-8e32-4c10-91d3-7060c0bd8ec7"
 authors = ["Ben J. Ward <benjward@protonmail.com>"]
-version = "0.3.0"
+version = "0.4.0"
 
 [deps]
 BioSequences = "7e6ae17a-c86d-528c-b3b9-7f778a29fe59"