diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4e6c35e84c4de8b7adf68e726ab6839da6781d59..dca06983ef9b1056ffb735ed57c9b220ef3e12ec 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,7 @@
 
 
   variables:
-    NIXOS_VERSION: "23.05"
+    NIXOS_VERSION: "23.11"
     NIXPKGS_ALLOW_UNFREE: "1"
     NIXPKGS_ALLOW_INSECURE: "1"
     DOCKER_DRIVER: overlay2
diff --git a/devenv.lock b/devenv.lock
index 59ec306ced8b67815fadf34748a2d99d0a31364a..02fa62c0b6385aff6fa81ec7f4c92a6421cf65b7 100644
--- a/devenv.lock
+++ b/devenv.lock
@@ -171,11 +171,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1704368107,
-        "narHash": "sha256-9Z7Pd5N6ixvjgewuRSI3MierEwy1yKYZRKtQo5+IqIA=",
+        "lastModified": 1704374683,
+        "narHash": "sha256-p6HoFOqxx5o4FrbOmIeohB0rUlMtj41tMaT0rbs/XnI=",
         "ref": "refs/heads/master",
-        "rev": "02c93c9f88cf85f48d355537c476269b0e4255f1",
-        "revCount": 83,
+        "rev": "6a046d4058fa4421367bb3c956b3183b800dc295",
+        "revCount": 85,
         "type": "git",
         "url": "https://gitlab.schukai.com/oss/utilities/version.git"
       },
diff --git a/devenv.nix b/devenv.nix
index e8132f8d6010a54c347e51fdf31b069d3efc0a90..657251fde40baaa664f824e3af4e6ade31fd7a3c 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -131,7 +131,7 @@ tasks:
 
 
         variables:
-          NIXOS_VERSION: "23.05"
+          NIXOS_VERSION: "23.11"
           NIXPKGS_ALLOW_UNFREE: "1"
           NIXPKGS_ALLOW_INSECURE: "1"
           DOCKER_DRIVER: overlay2
diff --git a/flake.lock b/flake.lock
index 655890ead74dd9a2fe7e38cad2b78a8a0033f1e4..9d77d122634292c2d048e9c9d79c0ae0acd9990e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,16 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1704018918,
-        "narHash": "sha256-erjg/HrpC9liEfm7oLqb8GXCqsxaFwIIPqCsknW5aFY=",
+        "lastModified": 1704145853,
+        "narHash": "sha256-G/1AMt9ibpeMlcxvD1vNaC8imGaK+g7zZ99e29BLgWw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2c9c58e98243930f8cb70387934daa4bc8b00373",
+        "rev": "2d2ea8eab9e400618748ab1a6a108255233b602c",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "type": "indirect"
       }
     },
diff --git a/flake.nix b/flake.nix
index e921e4f63bf3d14e13076fb1fdd0ac793108f977..0e0d53e11435c91056b0bc652f571f191829a83f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Version is a program that automates and simplifies the process of incrementing version numbers for software projects.";
 
   # Nixpkgs / NixOS version to use.
-  inputs.nixpkgs.url = "nixpkgs/nixos-23.05";
+  inputs.nixpkgs.url = "nixpkgs/nixos-23.11";
 
   outputs = {
     self,