diff --git a/artiq-fast/artiq-board.nix b/artiq-fast/artiq-board.nix
index c957e50..d8a822e 100644
--- a/artiq-fast/artiq-board.nix
+++ b/artiq-fast/artiq-board.nix
@@ -47,7 +47,7 @@ let
   cargoDeps = rustPlatform.fetchCargoTarball {
     name = "artiq-firmware-cargo-deps";
     src = "${artiqSrc}/artiq/firmware";
-    sha256 = "0hh9x34gs81a8g15abka6a0z1wlankra13rbap5j7ba2r8cz4962";
+    sha256 = "sha256-Lf6M4M/jdRiO5MsWSoqtOSNfRIhbze+qvg4kaiiBWW4=";
   };
 
   cargo-xbuild = rustPlatform.buildRustPackage rec {