diff --git a/pyproject.toml b/pyproject.toml
index 6ec822c..51696ce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ dependencies = [
 ragas = ["ragas>=0.2"]
 qdrant = ["qdrant-client>=1.7,<3"]
 chroma = ["chromadb>=0.4,<2"]
-milvus = ["pymilvus>=2.3,<3"]
+milvus = ["pymilvus>=2.3,<4"]
 weaviate = ["weaviate-client>=3.24,<5"]
 postgres = ["psycopg2-binary>=2.9,<3"]
 pgvector = ["psycopg2-binary>=2.9,<3"]