diff --git a/pom.xml b/pom.xml
index a5a0683..7fd94c2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -18,7 +18,7 @@
 		<maven.compiler.target>17</maven.compiler.target>
 		<junit-jupiter.version>5.9.3</junit-jupiter.version>
 		<slf4j.version>2.0.7</slf4j.version>
-		<hapi.fhir.r4.version>6.4.1</hapi.fhir.r4.version>
+		<hapi.fhir.r4.version>6.6.0</hapi.fhir.r4.version>
 		<slf4j.version>2.0.7</slf4j.version>
 	</properties>