diff --git a/requirements.txt b/requirements.txt
index 35c1ae1..63fb3b4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 grpcio==1.53.2
-protobuf==3.15.0
+protobuf==4.25.8
diff --git a/setup.py b/setup.py
index 14e4788..270d0ec 100644
--- a/setup.py
+++ b/setup.py
@@ -11,6 +11,6 @@
       packages=['iosxr_grpc'],
       install_requires=[
           'grpcio==1.53.2',
-          'protobuf==3.15.0',
+          'protobuf==4.25.8',
       ],
       zip_safe=False)