diff --git a/system/kernighan/kernighan.nix b/system/kernighan/kernighan.nix
index 5e51f1c..e4e9d47 100644
--- a/system/kernighan/kernighan.nix
+++ b/system/kernighan/kernighan.nix
@@ -13,7 +13,7 @@
     hostName = "kernighan";
     firewall = {
       enable = true;
-      allowedTCPPorts = [ 2222 80 443 ];
+      allowedTCPPorts = [ 2223 80 443 ];
     };
     interfaces = {
        end0.ipv4.addresses = [{
diff --git a/system/shared/shared-configuration.nix b/system/shared/shared-configuration.nix
index cb8dea6..6c7eb54 100644
--- a/system/shared/shared-configuration.nix
+++ b/system/shared/shared-configuration.nix
@@ -61,7 +61,7 @@
 
   services.openssh = {
     enable = true;
-    ports = [ 2222 ];
+    ports = [ 2222 2223 ];
     settings.PasswordAuthentication = false;
   };
 
diff --git a/users/tsv/ssh/config b/users/tsv/ssh/config
index 1db81f3..6c6013f 100644
--- a/users/tsv/ssh/config
+++ b/users/tsv/ssh/config
@@ -9,7 +9,7 @@ Host kernighan
   IdentityFile /home/tsv/.ssh/personal
   User tsv
   IdentitiesOnly yes
-  Port 2222
+  Port 2223
 
 Host git.tsvallender.co.uk
   HostName git.tsvallender.co.uk