diff --git a/cql-wih/pom.xml b/cql-wih/pom.xml
index 5f50c55c..7cb5eb60 100644
--- a/cql-wih/pom.xml
+++ b/cql-wih/pom.xml
@@ -180,7 +180,7 @@
 		<dependency>
 			<groupId>ca.uhn.hapi.fhir</groupId>
 			<artifactId>org.hl7.fhir.r4</artifactId>
-			<version>5.5.7</version>
+			<version>6.3.23</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>