diff --git a/nix/sources.json b/nix/sources.json
index 6a9eb11..3b1592d 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -55,6 +55,18 @@
         "url": "https://github.com/nmattia/niv/archive/82e5cd1ad3c387863f0545d7591512e76ab0fc41.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
+    "nixos-23.05": {
+        "branch": "nixos-23.05",
+        "description": "Nix Packages collection & NixOS",
+        "homepage": "",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "70bdadeb94ffc8806c0570eb5c2695ad29f0e421",
+        "sha256": "05cbl1k193c9la9xhlz4y6y8ijpb2mkaqrab30zij6z4kqgclsrd",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/70bdadeb94ffc8806c0570eb5c2695ad29f0e421.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
     "nixos2111": {
         "branch": "nixos-21.11",
         "description": "Nix Packages collection",
diff --git a/profiles/server_common.nix b/profiles/server_common.nix
index 449debf..98f59af 100644
--- a/profiles/server_common.nix
+++ b/profiles/server_common.nix
@@ -6,7 +6,7 @@
   ...
 }: let
   sources = import ../nix/sources.nix;
-  nixpkgs2111 = (import sources.nixos2111 {}).pkgs;
+  nixpkgs2305 = (import sources."nixos-23.05" {}).pkgs;
 in {
   imports = [
     ../profiles/openssh.nix