diff --git a/Converters/Revit/Speckle.Converters.RevitShared/ServiceRegistration.cs b/Converters/Revit/Speckle.Converters.RevitShared/ServiceRegistration.cs
index 787d41326..ed644f76c 100644
--- a/Converters/Revit/Speckle.Converters.RevitShared/ServiceRegistration.cs
+++ b/Converters/Revit/Speckle.Converters.RevitShared/ServiceRegistration.cs
@@ -26,7 +26,8 @@ public static IServiceCollection AddRevitConverters(this IServiceCollection serv
     serviceCollection.AddScoped<IRootToHostConverter, RevitRootToHostConverter>();
     serviceCollection.AddSingleton(new RevitContext());
 
-    serviceCollection.AddSingleton(new RevitMaterialCacheSingleton());
+    serviceCollection.AddSingleton(new RevitToHostCacheSingleton());
+    serviceCollection.AddSingleton(new RevitToSpeckleCacheSingleton());
 
     // POC: do we need ToSpeckleScalingService as is, do we need to interface it out?
     serviceCollection.AddScoped<ScalingServiceToSpeckle>();