diff --git a/DepotDownloader/DepotDownloader.csproj b/DepotDownloader/DepotDownloader.csproj
index d1b64a23..56756550 100644
--- a/DepotDownloader/DepotDownloader.csproj
+++ b/DepotDownloader/DepotDownloader.csproj
@@ -5,7 +5,7 @@
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="protobuf-net" Version="3.0.52" />
+    <PackageReference Include="protobuf-net" Version="3.0.73" />
     <PackageReference Include="SteamKit2" Version="2.3.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file