diff --git a/morph/grid/hro-cloud/storage001-hardware.nix b/morph/grid/hro-cloud/storage001-hardware.nix
index 485ef24d83950f4e92bcd0aa043b0a3e461d6c6b..65ed08db328479b2154d91700de058f51e9866e5 100644
--- a/morph/grid/hro-cloud/storage001-hardware.nix
+++ b/morph/grid/hro-cloud/storage001-hardware.nix
@@ -32,6 +32,6 @@
     randomEncryption = true;
   } ];
 
-  nix.maxJobs = lib.mkDefault 24;
+  nix.settings.max-jobs = lib.mkDefault 24;
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 }
diff --git a/morph/grid/hro-cloud/storage002-hardware.nix b/morph/grid/hro-cloud/storage002-hardware.nix
index 87ba570133a0d36df174a62454d35c364308e13f..e12dc954677c6893fa50bfb81a6f2d76b4b719fb 100644
--- a/morph/grid/hro-cloud/storage002-hardware.nix
+++ b/morph/grid/hro-cloud/storage002-hardware.nix
@@ -34,6 +34,6 @@
     randomEncryption = true;
   } ];
 
-  nix.maxJobs = lib.mkDefault 24;
+  nix.settings.max-jobs = lib.mkDefault 24;
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 }
diff --git a/morph/lib/issuer-monitoring-ovh.nix b/morph/lib/issuer-monitoring-ovh.nix
index 45e6c80f40e753185dc941b2ec906590b6877a1f..86489b21b5224609f39feae5c01ed69e796114eb 100644
--- a/morph/lib/issuer-monitoring-ovh.nix
+++ b/morph/lib/issuer-monitoring-ovh.nix
@@ -36,5 +36,5 @@
 
   # Turn on automatic optimization of nix store
   # https://nixos.wiki/wiki/Storage_optimization
-  nix.autoOptimiseStore = true;
+  nix.settings.auto-optimise-store = true;
 }
diff --git a/morph/lib/issuer-payments-ovh.nix b/morph/lib/issuer-payments-ovh.nix
index a614e7431f8ea9799e6e3a5d13f1c3356aec7b1f..5451fb07dfa1015e16ae6eeed12be445342cdc96 100644
--- a/morph/lib/issuer-payments-ovh.nix
+++ b/morph/lib/issuer-payments-ovh.nix
@@ -33,5 +33,5 @@
 
   # Turn on automatic optimization of nix store
   # https://nixos.wiki/wiki/Storage_optimization
-  nix.autoOptimiseStore = true;
+  nix.settings.auto-optimise-store = true;
 }