diff --git a/src/Examine.Lucene/Providers/LuceneIndex.cs b/src/Examine.Lucene/Providers/LuceneIndex.cs
index 66958bf2..e9f0fcfa 100644
--- a/src/Examine.Lucene/Providers/LuceneIndex.cs
+++ b/src/Examine.Lucene/Providers/LuceneIndex.cs
@@ -18,6 +18,7 @@
 using Lucene.Net.Analysis.Standard;
 using Examine.Lucene.Indexing;
 using Examine.Lucene.Directories;
+using static Lucene.Net.Queries.Function.ValueSources.MultiFunction;
 
 namespace Examine.Lucene.Providers
 {
@@ -757,9 +758,11 @@ protected virtual void AddDocument(Document doc, ValueSet valueSet)
             }
 
             // TODO: try/catch with OutOfMemoryException (see docs on UpdateDocument), though i've never seen this in real life
-            _latestGen = IndexWriter.UpdateDocument(new Term(ExamineFieldNames.ItemIdFieldName, valueSet.Id), doc);
+            _latestGen = UpdateLuceneDocument(new Term(ExamineFieldNames.ItemIdFieldName, valueSet.Id), doc);
         }
 
+        protected virtual long? UpdateLuceneDocument(Term term, Document doc) => IndexWriter.UpdateDocument(term, doc);
+
         /// <summary>
         /// This queues up a commit for the index so that a commit doesn't happen on every individual write since that is quite expensive
         /// </summary>
diff --git a/src/Examine.Lucene/PublicAPI.Unshipped.txt b/src/Examine.Lucene/PublicAPI.Unshipped.txt
index e69de29b..b31f1482 100644
--- a/src/Examine.Lucene/PublicAPI.Unshipped.txt
+++ b/src/Examine.Lucene/PublicAPI.Unshipped.txt
@@ -0,0 +1 @@
+virtual Examine.Lucene.Providers.LuceneIndex.UpdateLuceneDocument(Lucene.Net.Index.Term term, Lucene.Net.Documents.Document doc) -> long?
\ No newline at end of file