diff --git a/pyproject.toml b/pyproject.toml
index 9a3f469..a7ebf69 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ grpcio-tools = "1.70.0"
 jsonpickle = ">=3.0,<4.1"
 pymitter = ">=0.4,<1.1"
 typing-extensions = ">=4.11,<4.14"
-types-protobuf = "5.29.1.20250403"
+types-protobuf = "6.30.2.20250503"
 pympler = "1.1"
 numpy = "2.0.2"