diff --git a/grpc-python/requirements.txt b/grpc-python/requirements.txt
index 31397223..13d41706 100644
--- a/grpc-python/requirements.txt
+++ b/grpc-python/requirements.txt
@@ -9,7 +9,7 @@ idna==2.10
 Jinja2==2.11.3
 license-expression==1.2
 MarkupSafe==1.1.1
-protobuf==3.15.8
+protobuf==5.29.6
 pycodestyle==2.7.0
 python-debian==0.1.39
 requests==2.25.1