diff --git a/pyproject.toml b/pyproject.toml
index f4a9a1b..a853e25 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,20 +39,20 @@ members = [
 
 [dependency-groups]
 dev = [
-    "pytest>=9.0.3",
-    "pytest-asyncio>=1.3.0",
-    "mypy>=2.1.0",
-    "ruff>=0.15.14",
-    "hypothesis>=6.152.9",
+    "pytest>=9.1.1",
+    "pytest-asyncio>=1.4.0",
+    "mypy>=2.3.0",
+    "ruff>=0.15.21",
+    "hypothesis>=6.156.6",
     "pre-commit>=4.6.0",
-    "pip-audit>=2.10.0",
+    "pip-audit>=2.10.1",
     "pytest-cov>=7.1.0",
     "types-pyyaml>=6.0.12.20260518",
     # gRPC codegen tooling (Step 3.2) — proto/rag.proto stub generation +
     # mypy-protobuf .pyi emission.  Runtime grpcio deps live in
     # apps/gateway/pyproject.toml.
-    "grpcio-tools>=1.66",
-    "mypy-protobuf>=3.6",
+    "grpcio-tools>=1.82.1",
+    "mypy-protobuf>=5.1.0",
 ]
 
 # ---------------------------------------------------------------------------