diff --git a/pyproject.toml b/pyproject.toml
index 1bf6feb..0854d9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "hydrocron"
-version = "1.5.0a1"
+version = "1.6.0a0"
 description = "OpenAPI access to Time Series data for SWOT features"
 authors = ["PO.DAAC <podaac@jpl.nasa.gov>"]
 license = "Apache-2.0"