diff --git a/src/WCCG.eReferralsService.API/WCCG.eReferralsService.API.csproj b/src/WCCG.eReferralsService.API/WCCG.eReferralsService.API.csproj
index b653710..a834d76 100644
--- a/src/WCCG.eReferralsService.API/WCCG.eReferralsService.API.csproj
+++ b/src/WCCG.eReferralsService.API/WCCG.eReferralsService.API.csproj
@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="FluentValidation.DependencyInjectionExtensions" Version="12.1.1" />
-    <PackageReference Include="Hl7.Fhir.R4" Version="[5.13.1,6.0.0)" />
+    <PackageReference Include="Hl7.Fhir.R4" Version="6.0.1" />
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.1.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="[7.3.2]" />    
     <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.23.0" />