diff --git a/hapi-fhir-base/src/main/java/ca/uhn/fhir/context/FhirVersionEnum.java b/hapi-fhir-base/src/main/java/ca/uhn/fhir/context/FhirVersionEnum.java
index 55082c59dd6..b75bcb55e30 100644
--- a/hapi-fhir-base/src/main/java/ca/uhn/fhir/context/FhirVersionEnum.java
+++ b/hapi-fhir-base/src/main/java/ca/uhn/fhir/context/FhirVersionEnum.java
@@ -309,6 +309,8 @@ public enum FhirVersionEnum {
 				return FhirVersionEnum.DSTU3;
 			case "R4":
 				return FhirVersionEnum.R4;
+			case "R4B":
+				return FhirVersionEnum.R4B;
 			case "R5":
 				return FhirVersionEnum.R5;
 		}
diff --git a/hapi-fhir-base/src/test/java/ca/uhn/fhir/context/FhirVersionEnumTest.java b/hapi-fhir-base/src/test/java/ca/uhn/fhir/context/FhirVersionEnumTest.java
index 8b3926f9f44..c1e1f49a3ce 100644
--- a/hapi-fhir-base/src/test/java/ca/uhn/fhir/context/FhirVersionEnumTest.java
+++ b/hapi-fhir-base/src/test/java/ca/uhn/fhir/context/FhirVersionEnumTest.java
@@ -19,8 +19,11 @@ public class FhirVersionEnumTest {
 		assertEquals(FhirVersionEnum.R4, FhirVersionEnum.forVersionString("4.0.0"));
 		assertEquals(FhirVersionEnum.R4, FhirVersionEnum.forVersionString("4.0.1"));
 		assertEquals(FhirVersionEnum.R4, FhirVersionEnum.forVersionString("R4"));
+		assertEquals(FhirVersionEnum.R4B, FhirVersionEnum.forVersionString("R4B"));
+		assertEquals(FhirVersionEnum.R4B, FhirVersionEnum.forVersionString("4.3.0"));
 
 		assertEquals(FhirVersionEnum.R5, FhirVersionEnum.forVersionString("R5"));
+
 	}
 
 
diff --git a/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_3_0/4291-r4b-package-install.yaml b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_3_0/4291-r4b-package-install.yaml
new file mode 100644
index 00000000000..c15d2742094
--- /dev/null
+++ b/hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/6_3_0/4291-r4b-package-install.yaml
@@ -0,0 +1,5 @@
+---
+type: add
+issue: 4291
+title: "The NPM package installer did not support installing on R4B repositories. Thanks to Jens Kristian Villadsen
+   for the pull request!"
diff --git a/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/packages/PackageInstallerSvcImpl.java b/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/packages/PackageInstallerSvcImpl.java
index 5918f00accf..d4343d1a9a6 100644
--- a/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/packages/PackageInstallerSvcImpl.java
+++ b/hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/packages/PackageInstallerSvcImpl.java
@@ -128,6 +128,7 @@ public class PackageInstallerSvcImpl implements IPackageInstallerSvc {
 	public void initialize() {
 		switch (myFhirContext.getVersion().getVersion()) {
 			case R5:
+			case R4B:
 			case R4:
 			case DSTU3:
 				break;