diff --git a/src/Surging.Apm/SkyApm.Transport.Grpc.Protocol/SkyApm.Transport.Grpc.Protocol.csproj b/src/Surging.Apm/SkyApm.Transport.Grpc.Protocol/SkyApm.Transport.Grpc.Protocol.csproj
index 9f073f38a..84bf5a81d 100644
--- a/src/Surging.Apm/SkyApm.Transport.Grpc.Protocol/SkyApm.Transport.Grpc.Protocol.csproj
+++ b/src/Surging.Apm/SkyApm.Transport.Grpc.Protocol/SkyApm.Transport.Grpc.Protocol.csproj
@@ -14,7 +14,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Google.Protobuf" Version="3.10.1" />
+        <PackageReference Include="Google.Protobuf" Version="3.15.0" />
         <PackageReference Include="Grpc" Version="2.24.0" />
         <PackageReference Include="Grpc.Tools" Version="2.24.0" PrivateAssets="All" />
     </ItemGroup>