diff --git a/pyproject.toml b/pyproject.toml
index c6f2fb2..c67dfda 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "vo-models"
-version = "0.2.1"
+version = "0.2.2.dev"
 authors = [
     {name = "Joshua Fraustro", email="jfraustro@stsci.edu"},
     {name = "MAST Archive Developers", email="archive@stsci.edu"}