diff --git a/CHANGELOG.md b/CHANGELOG.md
index a756a3d..0045993 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## Unreleased
+* PyLucene >=10 required
 
 ## [3.3](https://pypi.org/project/lupyne/3.3/) - 2024-10-20
 * PyLucene >=9.12 required
diff --git a/README.md b/README.md
index 852a40b..3bc2f30 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ PyLucene is not `pip` installable.
 * [Homebrew](https://brew.sh) formula: `brew install coady/tap/pylucene`
 
 ## Dependencies
-* PyLucene >=9.12
+* PyLucene >=10
 * strawberry-graphql (if graphql option)
 * fastapi (if rest option)
 
diff --git a/lupyne/engine/__init__.py b/lupyne/engine/__init__.py
index d7ab7d6..4b84c63 100644
--- a/lupyne/engine/__init__.py
+++ b/lupyne/engine/__init__.py
@@ -12,4 +12,4 @@
 from .indexers import IndexSearcher, MultiSearcher, IndexWriter, Indexer  # noqa
 
 version = tuple(map(int, lucene.VERSION.split('.')))
-assert version >= (9, 12), version
+assert version >= (10,), version
diff --git a/lupyne/engine/documents.py b/lupyne/engine/documents.py
index 430e95c..a530871 100644
--- a/lupyne/engine/documents.py
+++ b/lupyne/engine/documents.py
@@ -348,7 +348,7 @@ def __init__(self, searcher, scoredocs: Sequence, count=0, fields=None):
         self.searcher, self.scoredocs = searcher, scoredocs
         if hasattr(count, 'relation'):
             cls = int if count.relation == search.TotalHits.Relation.EQUAL_TO else float
-            count = cls(count.value() if lucene.VERSION.startswith('10.') else count.value)
+            count = cls(count.value())
         self.count, self.fields = count, fields
 
     def select(self, *fields: str):
@@ -450,12 +450,8 @@ def __len__(self):
     def __getitem__(self, index):
         hits = groupdocs = self.groupdocs[index]
         if isinstance(groupdocs, grouping.GroupDocs):
-            if lucene.VERSION.startswith('10.'):  # pragma: no cover
-                hits = Hits(self.searcher, groupdocs.scoreDocs(), groupdocs.totalHits())
-                hits.value = convert(groupdocs.groupValue())
-            else:
-                hits = Hits(self.searcher, groupdocs.scoreDocs, groupdocs.totalHits)
-                hits.value = convert(groupdocs.groupValue)
+            hits = Hits(self.searcher, groupdocs.scoreDocs(), groupdocs.totalHits())
+            hits.value = convert(groupdocs.groupValue())
         hits.fields = self.fields
         return hits