diff --git a/src/main/resources/hapi.properties b/src/main/resources/hapi.properties
index c4468c3..dd7d758 100644
--- a/src/main/resources/hapi.properties
+++ b/src/main/resources/hapi.properties
@@ -1,7 +1,7 @@
 # Adjust this to set the version of FHIR supported by this server. See
 # FhirVersionEnum for a list of available constants. Example values include
 # DSTU2, DSTU3, R4.
-fhir_version=DSTU3
+fhir_version=R4
 
 # This is the address that the FHIR server will report as its own address.
 # If this server will be deployed (for example) to an internet accessible