diff --git a/pyproject.toml b/pyproject.toml
index afd7a51f..17526b48 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -106,7 +106,7 @@ offline-storage = [
     # Storage backend dependencies
     "redis>=5.0.0,<8.0.0",
     "neo4j>=5.0.0,<7.0.0",
-    "pymilvus>=2.6.2,<3.0.0",
+    "pymilvus>=2.6.2,<4.0.0",
     "pymongo>=4.0.0,<5.0.0",
     "asyncpg>=0.31.0,<1.0.0",
     "pgvector>=0.4.2,<1.0.0",
diff --git a/requirements-offline-storage.txt b/requirements-offline-storage.txt
index 82caacbd..4a32b10f 100644
--- a/requirements-offline-storage.txt
+++ b/requirements-offline-storage.txt
@@ -11,7 +11,7 @@
 asyncpg>=0.31.0,<1.0.0
 neo4j>=5.0.0,<7.0.0
 pgvector>=0.4.2,<1.0.0
-pymilvus>=2.6.2,<3.0.0
+pymilvus>=2.6.2,<4.0.0
 pymongo>=4.0.0,<5.0.0
 qdrant-client>=1.11.0,<2.0.0
 redis>=5.0.0,<8.0.0
diff --git a/requirements-offline.txt b/requirements-offline.txt
index 2568e1d9..e44eb179 100644
--- a/requirements-offline.txt
+++ b/requirements-offline.txt
@@ -20,7 +20,7 @@ openai>=2.0.0,<3.0.0
 openpyxl>=3.0.0,<4.0.0
 pgvector>=0.4.2,<1.0.0
 pycryptodome>=3.0.0,<4.0.0
-pymilvus>=2.6.2,<3.0.0
+pymilvus>=2.6.2,<4.0.0
 pymongo>=4.0.0,<5.0.0
 pypdf>=6.1.0
 python-docx>=0.8.11,<2.0.0