diff --git a/modules/base/ssh.nix b/modules/base/ssh.nix
index 4adb5de..8db2fed 100644
--- a/modules/base/ssh.nix
+++ b/modules/base/ssh.nix
@@ -20,7 +20,8 @@
     "alpha".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGOpQNEmmEe6jr7Mv37ozokvtTSd1I3SmUU1tpCSNTkc";
     "delta".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIB0x9oImZjIhoPEwLlHVixIh7y1Kwn+SX17xffrdRzvv";
     "lambda".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEEd354UBnQi4xhjtJtKs4yVXuOkKY0svk+YHCm/pG46";
-    "sigma".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF2Qrh0tpR5YawiYvcPGC4OSnu4//ge1eVdiBDLrTbCx";
+    "sigma".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIC4Kvx/lcFRvl7KlxqqhrJ32h3FzuzyLA5BNB42+p92c";
+    "sigma-old".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF2Qrh0tpR5YawiYvcPGC4OSnu4//ge1eVdiBDLrTbCx";
     "tor".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMVPxvqwS2NMqqCGBkMmExzdBY5hGLegiOuqPJAOfdKk";
     "git.caspervk.net".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAvPxSg6XN6znT1T4H0U1lzJBsGY7Uann+TBisWD3Drd";
   };