diff --git a/pkgs/protonup-rs/default.nix b/pkgs/protonup-rs/default.nix
index a96f9db..6f5f912 100644
--- a/pkgs/protonup-rs/default.nix
+++ b/pkgs/protonup-rs/default.nix
@@ -23,7 +23,7 @@ rustPlatform.buildRustPackage rec {
     "--skip=github::tests::test_list_releases"
   ];
 
-  cargoSha256 = "sha256-/8JhMDwBP3INP9+YlkTc+SwGnZypcj7OJingiyw1pcU=";
+  cargoHash = "sha256-/8JhMDwBP3INP9+YlkTc+SwGnZypcj7OJingiyw1pcU=";
 
   meta = with lib; {
     description = "A Rust app to Install and Update GE-Proton for Steam, and Wine-GE for Lutris";