diff --git a/CosmosSharp.GRPC/CosmosSharp.GRPC.csproj b/CosmosSharp.GRPC/CosmosSharp.GRPC.csproj
index 10b1a79..aa19317 100644
--- a/CosmosSharp.GRPC/CosmosSharp.GRPC.csproj
+++ b/CosmosSharp.GRPC/CosmosSharp.GRPC.csproj
@@ -7,7 +7,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.14.0" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     <PackageReference Include="Grpc.Net.Client" Version="2.35.0" />
     <PackageReference Include="Grpc.Net.ClientFactory" Version="2.32.0" />
     <PackageReference Include="Grpc.Tools" Version="2.35.0">