diff --git a/samples/brokers/onvif-video-broker/onvif-video-broker.csproj b/samples/brokers/onvif-video-broker/onvif-video-broker.csproj
index 5858409..cd263ca 100644
--- a/samples/brokers/onvif-video-broker/onvif-video-broker.csproj
+++ b/samples/brokers/onvif-video-broker/onvif-video-broker.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="Json.NET" Version="1.0.18" />
     <PackageReference Include="KubernetesClient" Version="1.6.27" />
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.9.10" />
-    <PackageReference Include="Google.Protobuf" Version="3.11.3" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     <PackageReference Include="Grpc" Version="2.27.0" />
     <PackageReference Include="Grpc.AspNetCore" Version="2.27.0" />
     <PackageReference Include="Grpc.Tools" Version="2.27.0">