diff --git a/pyproject.toml b/pyproject.toml
index f13389c..54bbc22 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,10 +40,10 @@ members = [
 [dependency-groups]
 dev = [
     "pytest>=9.0.3",
-    "pytest-asyncio>=1.3.0",
+    "pytest-asyncio>=1.4.0",
     "mypy>=2.1.0",
-    "ruff>=0.15.14",
-    "hypothesis>=6.152.9",
+    "ruff>=0.15.16",
+    "hypothesis>=6.155.2",
     "pre-commit>=4.6.0",
     "pip-audit>=2.10.0",
     "pytest-cov>=7.1.0",
@@ -51,8 +51,8 @@ dev = [
     # 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>=1.81.0",
+    "mypy-protobuf>=5.1.0",
 ]
 
 # ---------------------------------------------------------------------------