diff --git a/GrpcAudioStreaming.Proto/GrpcAudioStreaming.Proto.csproj b/GrpcAudioStreaming.Proto/GrpcAudioStreaming.Proto.csproj
index 284c4b8..234b42f 100644
--- a/GrpcAudioStreaming.Proto/GrpcAudioStreaming.Proto.csproj
+++ b/GrpcAudioStreaming.Proto/GrpcAudioStreaming.Proto.csproj
@@ -5,7 +5,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Google.Protobuf" Version="3.9.1" />
+        <PackageReference Include="Google.Protobuf" Version="3.15.0" />
         <PackageReference Include="Grpc.Core" Version="2.23.0" />
         <PackageReference Include="Grpc.Tools" Version="2.23.0" PrivateAssets="All" />
     </ItemGroup>