diff --git a/README.md b/README.md
index 32ee797..18c23b2 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,6 @@
 
 Python implementation of the OSlg logger for the OpenStudio SDK.
 
-(original Ruby implementation/documentation : https://github.com/rd2/oslg)
+(original Ruby implementation/documentation: https://github.com/rd2/oslg)
+
+_Disclaimer: alpha release_
diff --git a/pyproject.toml b/pyproject.toml
index 294a44e..d618752 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "oslg"
-version = "0.3.0"
+version = "0.3.0a1"
 requires-python = ">=3.2"
 authors = [
   {name = "Denis Bourgeois", email = "denis@rd2.ca"}