diff --git a/agent/requirements.txt b/agent/requirements.txt
index 593197cd..8ef2e6fb 100644
--- a/agent/requirements.txt
+++ b/agent/requirements.txt
@@ -5,7 +5,7 @@ langchain>=1.0.0,<2
 langchain-core>=1.0.0,<2
 langchain-openai>=1.0.0,<2
 # optional: pip install "vibe-trading-ai[deepseek]" — native DeepSeek adapter (langchain-deepseek)
-langgraph>=1.0.10,<1.1
+langgraph>=1.0.10,<1.3
 langgraph-checkpoint>=2.1.0,<5
 python-dotenv>=1.0.0
 httpx>=0.28.0