diff --git a/pkgs/by-name/de/deno/package.nix b/pkgs/by-name/de/deno/package.nix
index e9ad32459b43..0efdeb47fcdc 100644
--- a/pkgs/by-name/de/deno/package.nix
+++ b/pkgs/by-name/de/deno/package.nix
@@ -279,6 +279,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
       ofalvai
       mynacol
     ];
+    maxSilent = 14400; # 4h, double the default of 7200s; sometimes needed for x86_64-darwin on hydra
     platforms = [
       "x86_64-linux"
       "aarch64-linux"
diff --git a/pkgs/by-name/de/deno/rusty-v8/default.nix b/pkgs/by-name/de/deno/rusty-v8/default.nix
index 2db5c12778ed..b58fd23d14fc 100644
--- a/pkgs/by-name/de/deno/rusty-v8/default.nix
+++ b/pkgs/by-name/de/deno/rusty-v8/default.nix
@@ -190,6 +190,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
     homepage = "https://github.com/denoland/rusty_v8";
     license = lib.licenses.mit;
     maintainers = deno.meta.maintainers;
+    maxSilent = 14400; # 4h, double the default of 7200s; sometimes needed for x86_64-darwin on hydra
     platforms = deno.meta.platforms;
   };
 })