diff --git a/DistributedHashTableClient/DistributedHashTableClient.csproj b/DistributedHashTableClient/DistributedHashTableClient.csproj
index eb9de7b..fc0ff5e 100644
--- a/DistributedHashTableClient/DistributedHashTableClient.csproj
+++ b/DistributedHashTableClient/DistributedHashTableClient.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.11.2" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     <PackageReference Include="Grpc.Net.Client" Version="2.26.0" />
     <PackageReference Include="Grpc.Tools" Version="2.26.0">
       <PrivateAssets>all</PrivateAssets>