diff --git a/sdk/pyproject.toml b/sdk/pyproject.toml
index bb0b884..60b1554 100644
--- a/sdk/pyproject.toml
+++ b/sdk/pyproject.toml
@@ -42,7 +42,7 @@ dev = [
     "mypy>=2.1.0",
     "mypy-protobuf>=5.1.0",
     "ruff>=0.15.16",
-    "grpcio-tools>=1.80.0",
+    "grpcio-tools>=1.81.0",
     "pdoc>=16.0.0",
 ]