diff --git a/flake.lock b/flake.lock
index 3517bf3..dfa91e7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -954,6 +954,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-23_11": {
+      "locked": {
+        "lastModified": 1706373441,
+        "narHash": "sha256-S1hbgNbVYhuY2L05OANWqmRzj4cElcbLuIkXTb69xkk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "56911ef3403a9318b7621ce745f5452fb9ef6867",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
@@ -1554,6 +1570,7 @@
         "gc": "gc",
         "login": "login",
         "nixpkgs": "nixpkgs_10",
+        "nixpkgs-23_11": "nixpkgs-23_11",
         "nixpkgs-unstable": "nixpkgs-unstable_5",
         "sso-test": "sso-test"
       }
diff --git a/flake.nix b/flake.nix
index f889003..8563b32 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,7 @@
 {
   inputs = {
     nixpkgs.url = github:NixOS/nixpkgs/nixos-23.05;
+    nixpkgs-23_11.url = github:NixOS/nixpkgs/nixos-23.11;
     nixpkgs-unstable.url = github:NixOS/nixpkgs;
     agenix.url = github:ryantm/agenix;
     sso-test.url = github:UM-LPM/sso-test;
@@ -10,8 +11,8 @@
     gc.url = github:Mir1001/gc_mv_backend;
   };
 
-  outputs = {self, nixpkgs, nixpkgs-unstable, agenix, sso-test, collab, collab-dev, login, gc, ...}@inputs:
-  let 
+  outputs = {self, nixpkgs, nixpkgs-23_11, nixpkgs-unstable, agenix, sso-test, collab, collab-dev, login, gc, ...}@inputs:
+  let
     pkgs = import nixpkgs {
       system = "x86_64-linux";
       config.allowUnfree = true;
@@ -19,6 +20,10 @@
         "nodejs-16.20.2"
       ];
     };
+    pkgs-23_11 = import nixpkgs-23_11 {
+      system = "x86_64-linux";
+      config.allowUnfree = true;
+    };
     pkgs-unstable = import nixpkgs-unstable {
       system = "x86_64-linux";
       config.allowUnfree = true;
@@ -43,7 +48,7 @@
           ./modules/secrets.nix
           ./machines/${hostname}/configuration.nix
         ];
-        specialArgs = {inherit inputs pkgs-unstable;};
+        specialArgs = {inherit inputs pkgs-unstable pkgs-23_11;};
       };
     in {
       "minimal" = mkSystem "minimal.l" [];
diff --git a/machines/runner1.l/configuration.nix b/machines/runner1.l/configuration.nix
index 9329b2b..3be2f3d 100644
--- a/machines/runner1.l/configuration.nix
+++ b/machines/runner1.l/configuration.nix
@@ -1,6 +1,6 @@
-{config, pkgs, pkgs-unstable, ...}:
+{config, pkgs, pkgs-unstable, pkgs-23_11, ...}:
 let
-  github-runner = pkgs-unstable.github-runner; #.override { nodeRuntimes = [ "node16" "node20" ]; };
+  github-runner = pkgs-23_11.github-runner; #.override { nodeRuntimes = [ "node16" "node20" ]; };
 in
 {
   imports = [