diff --git a/pkgs/stdenv/linux/bootstrap-files/riscv64-unknown-linux-gnu.nix b/pkgs/stdenv/linux/bootstrap-files/riscv64-unknown-linux-gnu.nix
index aaf1f153c787..2a3bf376ac64 100644
--- a/pkgs/stdenv/linux/bootstrap-files/riscv64-unknown-linux-gnu.nix
+++ b/pkgs/stdenv/linux/bootstrap-files/riscv64-unknown-linux-gnu.nix
@@ -1,12 +1,26 @@
+#
+# Files came from this Hydra build:
+#
+#   https://hydra.nixos.org/build/246376732
+#
+# Which used nixpkgs revision 160cedc144aced7a35a91440b46b74ffacd52682
+# to instantiate:
+#
+#   /nix/store/cpiajh4l83b08pynwiwkpxj53d78pcxr-stdenv-bootstrap-tools-riscv64-unknown-linux-gnu.drv
+#
+# and then built:
+#
+#   /nix/store/8a92pj40awdw585mcb9dvm4nyb03k3q3-stdenv-bootstrap-tools-riscv64-unknown-linux-gnu
+#
 {
   busybox = import <nix/fetchurl.nix> {
-    url = "http://tarballs.nixos.org/stdenv-linux/riscv64/9bd3cf0063b80428bd85a286205adab4b6ffcbd6/busybox";
-    sha256 = "6f61912f94bc4ef287d1ff48a9521ed16bd07d8d8ec775e471f32c64d346583d";
+    url = "http://tarballs.nixos.org/stdenv-linux/riscv64/160cedc144aced7a35a91440b46b74ffacd52682/busybox";
+    sha256 = "sha256-OGO96QUzs2n5pGipn/V87AxzUY9OWKZl417nE8HdZIE=";
     executable = true;
   };
 
   bootstrapTools = import <nix/fetchurl.nix> {
-    url = "http://tarballs.nixos.org/stdenv-linux/riscv64/9bd3cf0063b80428bd85a286205adab4b6ffcbd6/bootstrap-tools.tar.xz";
-    sha256 = "5466b19288e980125fc62ebb864d09908ffe0bc50cebe52cfee89acff14d5b9f";
+    url = "http://tarballs.nixos.org/stdenv-linux/riscv64/160cedc144aced7a35a91440b46b74ffacd52682/bootstrap-tools.tar.xz";
+    sha256 = "sha256-0LxRd7fdafQezNJ+N2tuOfm0KEwgfRSts5fhP0e0r0s=";
   };
 }