diff --git a/pyproject.toml b/pyproject.toml
index 815886c..d88cd03 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,14 +29,14 @@ dependencies = [
     "pyyaml>=6.0.3",
     "rich>=15.0.0",
     "prompt_toolkit>=3.0.52",
-    "httpx>=0.27.0",
-    "fastapi>=0.115.0",
-    "uvicorn>=0.30.0",
-    "python-multipart>=0.0.9",
-    "jinja2>=3.1.4",
+    "httpx>=0.28.1",
+    "fastapi>=0.136.3",
+    "uvicorn>=0.48.0",
+    "python-multipart>=0.0.29",
+    "jinja2>=3.1.6",
     # v2 / Milestone 2c: Ed25519 signatures for lineage_share grants.
     # Also provides Argon2id KDF for the web UI password store.
-    "cryptography>=46.0.0",
+    "cryptography>=48.0.0",
 ]
 
 [project.optional-dependencies]
@@ -52,7 +52,7 @@ test = [
     "pytest-cov",
     # tests/test_chat_loop.py uses async def + @pytest.mark.asyncio.
     # Required in CI; locally most devs have it system-wide.
-    "pytest-asyncio>=0.23.0",
+    "pytest-asyncio>=1.4.0",
 ]
 
 [project.scripts]