diff --git a/lass/1systems/aergia/physical.nix b/lass/1systems/aergia/physical.nix
index 93bf2a32e..44bd53c22 100644
--- a/lass/1systems/aergia/physical.nix
+++ b/lass/1systems/aergia/physical.nix
@@ -120,4 +120,7 @@
 
   # ignore power key
   services.logind.extraConfig = "HandlePowerKey=ignore";
+
+  # update cpu microcode
+  hardware.cpu.amd.updateMicrocode = true;
 }