diff --git a/pkgs/development/tools/gir/default.nix b/pkgs/development/tools/gir/default.nix
index 90acfce1ecb1..8cfcbf26dcd6 100644
--- a/pkgs/development/tools/gir/default.nix
+++ b/pkgs/development/tools/gir/default.nix
@@ -11,10 +11,7 @@ rustPlatform.buildRustPackage rec {
     sha256 = "1kn5kgdma9j6dwpmv6jmydak7ajlgdkw9sfkh3q7h8c2a8yikvxr";
   };
 
-  # Delete this on next update; see #79975 for details
-  legacyCargoFetcher = true;
-
-  cargoSha256 = "1ybd9h2f13fxmnkzbacd39rcyzjcjd2ra52y8kncg1s0dc0m8rjb";
+  cargoSha256 = "048qhlc4f5khxi7dnakgqkhgww44r6h3mlx2fm7y2wqivr3rj8p1";
 
   meta = with stdenv.lib; {
     description = "Tool to generate rust bindings and user API for glib-based libraries";