diff --git a/pyproject.toml b/pyproject.toml
index 1fbe637..98641cc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -79,7 +79,7 @@ dev = [
     "hatch>=1.16.3",
     "hatch-protobuf>=0.5.0",
     "grpcio==1.80.0", # force downgrade due to "https://github.com/grpc/grpc/issues/41725"
-    "grpcio-tools==1.80.0", # force downgrade due to "https://github.com/grpc/grpc/issues/41725"
+    "grpcio-tools==1.81.0", # force downgrade due to "https://github.com/grpc/grpc/issues/41725"
     "mdformat-gfm>=1.0.0",
     "mdformat-ruff>=0.1.3",
     "mypy-protobuf>=5.0.0",