diff --git a/DepotDownloader/DepotDownloader.csproj b/DepotDownloader/DepotDownloader.csproj
index 16e616c..28f5eca 100644
--- a/DepotDownloader/DepotDownloader.csproj
+++ b/DepotDownloader/DepotDownloader.csproj
@@ -25,7 +25,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="protobuf-net" Version="3.2.56" />
+    <PackageReference Include="protobuf-net" Version="3.3.21" />
     <PackageReference Include="QRCoder" Version="1.8.0" />
     <PackageReference Include="SteamKit2" Version="3.4.0" />
   </ItemGroup>