diff --git a/xml/FHIR-us-davinci-cdex.xml b/xml/FHIR-us-davinci-cdex.xml
index 06ec1f2e..945c3a87 100644
--- a/xml/FHIR-us-davinci-cdex.xml
+++ b/xml/FHIR-us-davinci-cdex.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<specification xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ballotUrl="http://hl7.org/fhir/us/davinci-cdex/STU2.1-snapshot" ciUrl="http://build.fhir.org/ig/HL7/davinci-ecdx" defaultVersion="2.0.0" defaultWorkgroup="pie" gitUrl="https://github.com/HL7/davinci-ecdx" url="http://hl7.org/fhir/us/davinci-cdex">
+<specification xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ballotUrl="http://hl7.org/fhir/us/davinci-cdex/STU2.1-snapshot" ciUrl="http://build.fhir.org/ig/HL7/davinci-ecdx" defaultVersion="2.1.0" defaultWorkgroup="pie" gitUrl="https://github.com/HL7/davinci-ecdx" url="http://hl7.org/fhir/us/davinci-cdex">
 <version code="current" url="http://build.fhir.org/ig/HL7/davinci-ecdx"/>
+<version code="2.1.0" url="http://hl7.org/fhir/us/davinci-cdex/STU2.1"/>
 <version code="2.1.0-snapshot" url="http://hl7.org/fhir/us/davinci-cdex/STU2.1-snapshot"/>
 <version code="2.0.0" url="http://hl7.org/fhir/us/davinci-cdex/STU2"/>
 <version code="2.0.0-ballot" deprecated="true" url="http://hl7.org/fhir/us/davinci-cdex/2022Sep"/>