diff --git a/backend/packages/harness/deerflow/agents/middlewares/memory_middleware.py b/backend/packages/harness/deerflow/agents/middlewares/memory_middleware.py
index 31d339f..90907b6 100644
--- a/backend/packages/harness/deerflow/agents/middlewares/memory_middleware.py
+++ b/backend/packages/harness/deerflow/agents/middlewares/memory_middleware.py
@@ -6,6 +6,7 @@ from typing import Any, override
 
 from langchain.agents import AgentState
 from langchain.agents.middleware import AgentMiddleware
+from langgraph.config import get_config
 from langgraph.runtime import Runtime
 
 from deerflow.agents.memory.queue import get_memory_queue
@@ -122,8 +123,11 @@ class MemoryMiddleware(AgentMiddleware[MemoryMiddlewareState]):
         if not config.enabled:
             return None
 
-        # Get thread ID from runtime context
+        # Get thread ID from runtime context first, then fall back to LangGraph's configurable metadata
         thread_id = runtime.context.get("thread_id") if runtime.context else None
+        if thread_id is None:
+            config_data = get_config()
+            thread_id = config_data.get("configurable", {}).get("thread_id")
         if not thread_id:
             logger.debug("No thread_id in context, skipping memory update")
             return None