diff --git a/packages/graphrag/graphrag/query/indexer_adapters.py b/packages/graphrag/graphrag/query/indexer_adapters.py
index 7119ad842c..a6ded1f9f7 100644
--- a/packages/graphrag/graphrag/query/indexer_adapters.py
+++ b/packages/graphrag/graphrag/query/indexer_adapters.py
@@ -221,5 +221,5 @@ def _filter_under_community_level(
 ) -> pd.DataFrame:
     return cast(
         "pd.DataFrame",
-        df[df.level <= community_level],
+        df[(df.level <= community_level) | df.level.isna()],
     )
diff --git a/packages/graphrag/pyproject.toml b/packages/graphrag/pyproject.toml
index f9fa8b5373..727feb7f75 100644
--- a/packages/graphrag/pyproject.toml
+++ b/packages/graphrag/pyproject.toml
@@ -46,7 +46,7 @@ dependencies = [
     "graspologic-native~=1.2",
     "json-repair~=0.30",
     "networkx~=3.4",
-    "nltk~=3.9",
+    "nltk~=3.9.3",
     "numpy~=2.1",
     "pandas~=2.3",
     "pyarrow~=22.0",