diff --git a/ConnectorCore/DllConflictManagement/Serialization/SpeckleNewtonsoftSerializer.cs b/ConnectorCore/DllConflictManagement/Serialization/SpeckleNewtonsoftSerializer.cs
index 753d81e54a..2fffc24bf3 100644
--- a/ConnectorCore/DllConflictManagement/Serialization/SpeckleNewtonsoftSerializer.cs
+++ b/ConnectorCore/DllConflictManagement/Serialization/SpeckleNewtonsoftSerializer.cs
@@ -6,5 +6,9 @@ public class SpeckleNewtonsoftSerializer : ISerializer
 {
   public string Serialize<T>(T obj) => JsonConvert.SerializeObject(obj);
 
-  public T Deserialize<T>(string serialized) => JsonConvert.DeserializeObject<T>(serialized);
+  public T Deserialize<T>(string serialized) =>
+    JsonConvert.DeserializeObject<T>(serialized)
+    ?? throw new InvalidOperationException(
+      $"Unable to deserialize the provided JSON into an object of type {typeof(T)}"
+    );
 }