diff --git a/bors.toml b/bors.toml
index 185403f..2a63539 100644
--- a/bors.toml
+++ b/bors.toml
@@ -1,15 +1,15 @@
 cut_body_after = "" # don't include text from the PR body in the merge commit message
 status = [
   "Evaluate flake.nix",
-  "check kexec-installer-2211 [x86_64-linux]",
+  "check kexec-installer-2305 [x86_64-linux]",
   "check kexec-installer-unstable [x86_64-linux]",
   "check shellcheck [x86_64-linux]",
-  "package kexec-installer-nixos-2211 [x86_64-linux]",
-  "package kexec-installer-nixos-2211-noninteractive [x86_64-linux]",
+  "package kexec-installer-nixos-2305 [x86_64-linux]",
+  "package kexec-installer-nixos-2305-noninteractive [x86_64-linux]",
   "package kexec-installer-nixos-unstable [x86_64-linux]",
   "package kexec-installer-nixos-unstable-noninteractive [x86_64-linux]",
-  "package netboot-installer-nixos-2211 [x86_64-linux]",
+  "package netboot-installer-nixos-2305 [x86_64-linux]",
   "package netboot-installer-nixos-unstable [x86_64-linux]",
-  "package netboot-nixos-2211 [x86_64-linux]",
+  "package netboot-nixos-2305 [x86_64-linux]",
   "package netboot-nixos-unstable [x86_64-linux]"
 ]
diff --git a/flake.lock b/flake.lock
index 9cafc67..cc72c00 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,35 +1,17 @@
 {
   "nodes": {
-    "disko": {
-      "inputs": {
-        "nixpkgs": "nixpkgs"
-      },
+    "nixos-2305": {
       "locked": {
-        "lastModified": 1686150639,
-        "narHash": "sha256-QHorMn3tgvCE0BM4QlNb/7vuquz11cS2ke1GSfmgiPo=",
-        "owner": "nix-community",
-        "repo": "disko",
-        "rev": "f1178c6e72b7d8ab2b55990397969324822275eb",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "disko",
-        "type": "github"
-      }
-    },
-    "nixos-2211": {
-      "locked": {
-        "lastModified": 1686174588,
-        "narHash": "sha256-3TWcRhBeCzW+sWZbusLkWdL2wTmwIPt3E0TyA43BkRA=",
+        "lastModified": 1686450428,
+        "narHash": "sha256-gqTXHowo0x803v93Kb8RW2wCjcYn9mqT1gk+zlyyQgY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "51d9b86c045e8b1f7a4b4ff106c7d83b3a6f53c7",
+        "rev": "067a81a6859a020135a73fcbb7b16e9fb43dc435",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "release-22.11",
+        "ref": "release-23.05",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -50,26 +32,9 @@
         "type": "github"
       }
     },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1685894048,
-        "narHash": "sha256-QKqv1QS+22k9oxncj1AnAxeqS5jGnQiUW3Jq3B+dI1w=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "2e56a850786211972d99d2bb39665a9b5a1801d6",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
-        "disko": "disko",
-        "nixos-2211": "nixos-2211",
+        "nixos-2305": "nixos-2305",
         "nixos-unstable": "nixos-unstable"
       }
     }
diff --git a/flake.nix b/flake.nix
index 68c27b9..f002dc2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,8 +2,7 @@
   description = "NixOS images";
 
   inputs.nixos-unstable.url = "github:NixOS/nixpkgs/nixos-unstable-small";
-  inputs.nixos-2211.url = "github:NixOS/nixpkgs/release-22.11";
-  inputs.disko.url = "github:nix-community/disko";
+  inputs.nixos-2305.url = "github:NixOS/nixpkgs/release-23.05";
 
   nixConfig.extra-substituters = [
     "https://cache.garnix.io"
@@ -12,7 +11,7 @@
     "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
   ];
 
-  outputs = { self, nixos-unstable, nixos-2211, disko }: let
+  outputs = { self, nixos-unstable, nixos-2305 }: let
     supportedSystems = [ "aarch64-linux" "x86_64-linux" ];
     forAllSystems = nixos-unstable.lib.genAttrs supportedSystems;
   in {
@@ -22,21 +21,21 @@
       netboot-installer = nixpkgs: (nixpkgs.legacyPackages.${system}.nixos [self.nixosModules.netboot-installer]).config.system.build.netboot;
     in {
       netboot-nixos-unstable = netboot nixos-unstable;
-      netboot-nixos-2211 = netboot nixos-2211;
+      netboot-nixos-2305 = netboot nixos-2305;
       kexec-installer-nixos-unstable = kexec-installer nixos-unstable [];
-      kexec-installer-nixos-2211 = kexec-installer nixos-2211 [];
+      kexec-installer-nixos-2305 = kexec-installer nixos-2305 [];
 
       kexec-installer-nixos-unstable-noninteractive = kexec-installer nixos-unstable [ 
         { system.kexec-installer.name = "nixos-kexec-installer-noninteractive"; }
         self.nixosModules.noninteractive 
       ];
-      kexec-installer-nixos-2211-noninteractive = kexec-installer nixos-2211 [ 
+      kexec-installer-nixos-2305-noninteractive = kexec-installer nixos-2305 [ 
         { system.kexec-installer.name = "nixos-kexec-installer-noninteractive"; }
         self.nixosModules.noninteractive 
       ];
 
       netboot-installer-nixos-unstable = netboot-installer nixos-unstable;
-      netboot-installer-nixos-2211 = netboot-installer nixos-2211;
+      netboot-installer-nixos-2305 = netboot-installer nixos-2305;
     });
     nixosModules = {
       kexec-installer = ./nix/kexec-installer/module.nix;
@@ -56,8 +55,8 @@
         shellcheck ${(pkgs.nixos [self.nixosModules.kexec-installer]).config.system.build.kexecRun}
         touch $out
       '';
-      kexec-installer-2211 = nixos-2211.legacyPackages.x86_64-linux.callPackage ./nix/kexec-installer/test.nix {
-        kexecTarball = self.packages.x86_64-linux.kexec-installer-nixos-2211-noninteractive;
+      kexec-installer-2305 = nixos-2305.legacyPackages.x86_64-linux.callPackage ./nix/kexec-installer/test.nix {
+        kexecTarball = self.packages.x86_64-linux.kexec-installer-nixos-2305-noninteractive;
       };
     };
   };