diff --git a/requirements.txt b/requirements.txt
index 4e854e8..e3e44f2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,15 @@
 langgraph==1.2.6
 # Durable SQLite checkpointer for the R720 agent-team Plane-2 pipeline (design D9).
 langgraph-checkpoint-sqlite==3.1.0
-langchain-anthropic==1.4.6
-langchain-openai==1.3.2
-langchain-google-genai==4.2.5
+langchain-anthropic==1.4.7
+langchain-openai==1.3.3
+langchain-google-genai==4.2.6
 langchain-community==0.4.2
-composio-langgraph==0.15.0
+composio-langgraph==0.16.0
 python-dotenv==1.2.2
 # WS1 agent-team HTTP API (agent_team/api.py): FastAPI app + uvicorn ASGI server.
-fastapi==0.136.1
-uvicorn==0.46.0
+fastapi==0.138.1
+uvicorn==0.49.0
 # GitHub App installation-token minting for the agent-team P3 dispatcher
 # (agent_team/github_app.py): RS256 JWT (PyJWT) signed with the App private key,
 # exchanged for a short-lived installation token. cryptography backs RS256.