diff --git a/pyproject.toml b/pyproject.toml
index 1624b0d..80394c0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "poetry.core.masonry.api"
 [tool]
 [tool.poetry]
 name = "aws-adfs"
-version = "2.9.0"
+version = "2.9.1a0"
 description = "AWS CLI authenticator via ADFS - small command-line tool to authenticate via ADFS and assume chosen role"
 keywords = ["aws", "adfs", "console", "tool"]
 classifiers = [