1 files changed, 5 insertions, 5 deletions
diff --git a/nixos/tests/os-prober.nix b/nixos/tests/os-prober.nix
index c1e29b0f68b41..90375450fe1b2 100644
--- a/nixos/tests/os-prober.nix
+++ b/nixos/tests/os-prober.nix
@@ -43,11 +43,11 @@ let
       # vda is a filesystem without partition table
       forceInstall = true;
     };
-    nix.binaryCaches = lib.mkForce [ ];
-    nix.extraOptions = ''
-      hashed-mirrors =
-      connect-timeout = 1
-    '';
+    nix.settings = {
+      substituters = lib.mkForce [];
+      hashed-mirrors = null;
+      connect-timeout = 1;
+    };
     # save some memory
     documentation.enable = false;
   };