diff --git a/src/CanalSharp/CanalSharp.csproj b/src/CanalSharp/CanalSharp.csproj
index 80b4f96..0136280 100644
--- a/src/CanalSharp/CanalSharp.csproj
+++ b/src/CanalSharp/CanalSharp.csproj
@@ -27,7 +27,7 @@
 
   <ItemGroup>
     <PackageReference Include="BeetleX" Version="1.6.8" />
-    <PackageReference Include="Google.Protobuf" Version="3.22.0" />
+    <PackageReference Include="Google.Protobuf" Version="3.33.1" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.3" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.3" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />