diff --git a/kuksa-client/requirements.txt b/kuksa-client/requirements.txt
index f16cfb6..7675c5f 100644
--- a/kuksa-client/requirements.txt
+++ b/kuksa-client/requirements.txt
@@ -18,7 +18,7 @@ jsonpath-ng==1.7.0
     # via kuksa_client (setup.cfg)
 ply==3.11
     # via jsonpath-ng
-protobuf==5.28.3
+protobuf==5.29.5
     # via grpcio-tools
 pygments==2.18.0
     # via kuksa_client (setup.cfg)
diff --git a/kuksa-client/test-requirements.txt b/kuksa-client/test-requirements.txt
index 75d2b26..c9773a6 100644
--- a/kuksa-client/test-requirements.txt
+++ b/kuksa-client/test-requirements.txt
@@ -38,7 +38,7 @@ pluggy==1.5.0
     # via pytest
 ply==3.11
     # via jsonpath-ng
-protobuf==5.28.3
+protobuf==5.29.5
     # via grpcio-tools
 pygments==2.18.0
     # via kuksa_client (setup.cfg)