diff --git a/builders/common/nix.nix b/builders/common/nix.nix
index ce136430..d1fa3602 100644
--- a/builders/common/nix.nix
+++ b/builders/common/nix.nix
@@ -37,7 +37,7 @@
         "build"
         "root"
       ];
-      max-silent-time = 10800; # 3h
+      max-silent-time = 14400; # 4h
     };
   };
 
diff --git a/macs/common.nix b/macs/common.nix
index 8e706796..c43acfde 100644
--- a/macs/common.nix
+++ b/macs/common.nix
@@ -49,7 +49,7 @@ in
         "nix-command"
         "flakes"
       ];
-      max-silent-time = 7200; # 2h
+      max-silent-time = 14400; # 4h
       timeout = 43200; # 12h
     };
     gc = {