diff --git a/src/DotNetty.Codecs.Protobuf/DotNetty.Codecs.Protobuf.csproj b/src/DotNetty.Codecs.Protobuf/DotNetty.Codecs.Protobuf.csproj
index d8b3f01..87d32ad 100644
--- a/src/DotNetty.Codecs.Protobuf/DotNetty.Codecs.Protobuf.csproj
+++ b/src/DotNetty.Codecs.Protobuf/DotNetty.Codecs.Protobuf.csproj
@@ -34,7 +34,7 @@
     <ProjectReference Include="..\DotNetty.Transport\DotNetty.Transport.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.2.0" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
   </ItemGroup>
   <!--<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.3' ">
     <PackageReference Include="System.Diagnostics.Contracts" Version="4.3.0" />