diff --git a/nixos/modules/profiles/hardened.nix b/nixos/modules/profiles/hardened.nix
index 13084b7f082..c7f80fe47aa 100644
--- a/nixos/modules/profiles/hardened.nix
+++ b/nixos/modules/profiles/hardened.nix
@@ -20,6 +20,9 @@ with lib;
 
     # Disable legacy virtual syscalls
     "vsyscall=none"
+
+    # Disable hibernation (allows replacing the running kernel)
+    "nohibernate"
   ];
 
   # Restrict ptrace() usage to processes with a pre-defined relationship