diff --git a/DepotDownloader/DepotDownloader.csproj b/DepotDownloader/DepotDownloader.csproj
index c9fbf234..4b6dfb0a 100644
--- a/DepotDownloader/DepotDownloader.csproj
+++ b/DepotDownloader/DepotDownloader.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="protobuf-net" Version="3.1.17" />
+    <PackageReference Include="protobuf-net" Version="3.1.33" />
     <PackageReference Include="SteamKit2" Version="2.4.1" />
   </ItemGroup>
 </Project>