diff --git a/pyproject.toml b/pyproject.toml
index ca674d0..e40028f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=83.0.0"]
+requires = ["setuptools>=84.0.0"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -25,18 +25,18 @@ classifiers = [
     "Typing :: Typed",
 ]
 dependencies = [
-    "pydantic>=2.13.4",
+    "pydantic>=2.13.5",
     "pyyaml>=6.0.3",
     "rich>=15.0.0",
-    "prompt_toolkit>=3.0.52",
+    "prompt_toolkit>=3.0.53",
     "httpx>=0.28.1",
-    "fastapi>=0.139.0",
-    "uvicorn>=0.51.0",
+    "fastapi>=0.142.2",
+    "uvicorn>=0.54.0",
     "python-multipart>=0.0.32",
     "jinja2>=3.1.6",
     # v2 / Milestone 2c: Ed25519 signatures for lineage_share grants.
     # Also provides Argon2id KDF for the web UI password store.
-    "cryptography>=49.0.0",
+    "cryptography>=50.0.2",
 ]
 
 [project.optional-dependencies]
@@ -55,10 +55,10 @@ test = [
     "pytest-asyncio>=1.4.0",
     # CI exercises the MCP catalog/server as a first-class AgentDrive surface.
     # Pin <2: mcp 2.x renamed FastMCP → MCPServer and breaks stdio client timeouts.
-    "mcp>=1.28.1,<2",
+    "mcp>=2.3.0,<3",
 ]
 mcp = [
-    "mcp>=1.28.1,<2",
+    "mcp>=2.3.0,<3",
 ]
 
 [project.scripts]