diff --git a/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj b/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj
index e6313979f1..0f734375c7 100644
--- a/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj
+++ b/src/Hl7.Fhir.Base/Hl7.Fhir.Base.csproj
@@ -16,7 +16,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
 		<PackageReference Include="System.Reflection.Emit.Lightweight" Version="4.7.0" />
 		<PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
 	</ItemGroup>