diff --git a/XamlBrewer.Uwp.Grpc.Server/XamlBrewer.Uwp.Grpc.Server.csproj b/XamlBrewer.Uwp.Grpc.Server/XamlBrewer.Uwp.Grpc.Server.csproj
index 864db2e..464f1fd 100644
--- a/XamlBrewer.Uwp.Grpc.Server/XamlBrewer.Uwp.Grpc.Server.csproj
+++ b/XamlBrewer.Uwp.Grpc.Server/XamlBrewer.Uwp.Grpc.Server.csproj
@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="Grpc.AspNetCore.Server" Version="0.1.22-pre1" />
-    <PackageReference Include="Google.Protobuf" Version="3.9.0-rc1" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     <PackageReference Include="Grpc.Core" Version="1.22.0-pre1" />
 
     <PackageReference Include="Grpc.Tools" Version="1.22.0-pre1" PrivateAssets="All" />