diff --git a/pyproject.toml b/pyproject.toml
index 8ed4b2f..68206c9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "amazon-omics-tools"
-version = "0.3.0"
+version = "0.4.0"
 license = "Apache-2.0"
 description = "Tools for working with the AWS HealthOmics Service"
 repository = "https://github.com/awslabs/amazon-omics-tools"