diff --git a/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/search/lastn/LastNElasticsearchSvcMultipleObservationsIT.java b/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/search/lastn/LastNElasticsearchSvcMultipleObservationsIT.java
index 547c0eb96f0..4a173f2dfbb 100644
--- a/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/search/lastn/LastNElasticsearchSvcMultipleObservationsIT.java
+++ b/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/search/lastn/LastNElasticsearchSvcMultipleObservationsIT.java
@@ -37,9 +37,9 @@ public class LastNElasticsearchSvcMultipleObservationsIT {
 
 	private final Map<String, Map<String, List<Date>>> createdPatientObservationMap = new HashMap<>();
 
-	private FhirContext myFhirContext = FhirContext.forR4();
+	private final FhirContext myFhirContext = FhirContext.forR4();
 
-	static private Calendar baseObservationDate = new GregorianCalendar();
+	static private final Calendar baseObservationDate = new GregorianCalendar();
 
 	@BeforeClass
 	public static void beforeClass() {