diff --git a/pom.xml b/pom.xml
index 7357004..37cbf59 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,7 +32,7 @@
         <hapi-fhir.version>7.2.1</hapi-fhir.version>
         <testcontainers.version>1.19.8</testcontainers.version>
         <slf4j.version>2.0.13</slf4j.version>
-        <ontology.version>2.2.0-RC2</ontology.version>
+        <ontology.version>2.2.0</ontology.version>
     </properties>
 
     <dependencies>