diff --git a/packages/graphrag-vectors/pyproject.toml b/packages/graphrag-vectors/pyproject.toml
index c460f24f5..179b32ecb 100644
--- a/packages/graphrag-vectors/pyproject.toml
+++ b/packages/graphrag-vectors/pyproject.toml
@@ -35,7 +35,7 @@ dependencies = [
     "azure-identity~=1.25",
     "azure-search-documents~=12.0",
     "graphrag-common==3.3.0",
-    "lancedb~=0.38.0",
+    "lancedb>=0.38,<0.41",
     "numpy~=2.4",
     "pyarrow~=25.0",
     "pydantic~=2.13",