diff --git a/LaksaCsharp/LaksaCsharp.csproj b/LaksaCsharp/LaksaCsharp.csproj
index ef65bc7..b6d65ff 100644
--- a/LaksaCsharp/LaksaCsharp.csproj
+++ b/LaksaCsharp/LaksaCsharp.csproj
@@ -10,7 +10,7 @@
 
   <ItemGroup>
     <PackageReference Include="BouncyCastle" Version="1.8.5" />
-    <PackageReference Include="Google.Protobuf" Version="3.6.1" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="RestSharp" Version="106.6.7" />
   </ItemGroup>