diff --git a/datm/cime_config/buildnml b/datm/cime_config/buildnml
index 3653c81c..14dc18e3 100755
--- a/datm/cime_config/buildnml
+++ b/datm/cime_config/buildnml
@@ -59,7 +59,7 @@ def _get_neon_data_availability(case, neonsite):
     neonatm = None
     dataversion = case.get_value("NEONVERSION")
     if dataversion == "latest":
-        dataversions = ["v3", "v2", "v1"]
+        dataversions = ["v4", "v3", "v2", "v1"]
     else:
         dataversions = [dataversion]