diff --git a/flake.lock b/flake.lock
index 2dfc4c8..3110420 100644
--- a/flake.lock
+++ b/flake.lock
@@ -9,11 +9,11 @@
         "poetry2nix": "poetry2nix"
       },
       "locked": {
-        "lastModified": 1699040089,
-        "narHash": "sha256-EEBYKHZgC3ecjEZno+a/ZbFRCCln2PrkVVzLJDXquZ4=",
+        "lastModified": 1701429257,
+        "narHash": "sha256-qogV2s6wU1KrFaPUPdUdRNYMLnuRJ19lnF8+bqqA5YE=",
         "owner": "fsr",
         "repo": "course-management",
-        "rev": "28f2eedcf0be82f5b718dc2077c6fba0f444d971",
+        "rev": "a0342bef0d833ef2175769e6cf3475a210fa3b94",
         "type": "github"
       },
       "original": {
@@ -47,11 +47,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1687709756,
-        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
         "type": "github"
       },
       "original": {
@@ -65,11 +65,11 @@
         "systems": "systems_2"
       },
       "locked": {
-        "lastModified": 1687709756,
-        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
         "type": "github"
       },
       "original": {
@@ -98,6 +98,28 @@
         "type": "github"
       }
     },
+    "nix-github-actions": {
+      "inputs": {
+        "nixpkgs": [
+          "course-management",
+          "poetry2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1698974481,
+        "narHash": "sha256-yPncV9Ohdz1zPZxYHQf47S8S0VrnhV7nNhCawY46hDA=",
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "rev": "4bb5e752616262457bc7ca5882192a564c0472d2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "type": "github"
+      }
+    },
     "nix-index-database": {
       "inputs": {
         "nixpkgs": [
@@ -105,11 +127,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1700363379,
-        "narHash": "sha256-fBEVPFwSZ6AmBE1s1oT7E9WVuqRghruxTnSQ8UUlMkw=",
+        "lastModified": 1702291765,
+        "narHash": "sha256-kfxavgLKPIZdYVPUPcoDZyr5lleymrqbr5G9PVfQ2NY=",
         "owner": "nix-community",
         "repo": "nix-index-database",
-        "rev": "27920146e671a0d565aaa7452907383be14d8d82",
+        "rev": "45d82e0a8b9dd6c5dd9da835ac0c072239af7785",
         "type": "github"
       },
       "original": {
@@ -120,27 +142,27 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1700403855,
-        "narHash": "sha256-Q0Uzjik9kUTN9pd/kp52XJi5kletBhy29ctBlAG+III=",
+        "lastModified": 1702346276,
+        "narHash": "sha256-eAQgwIWApFQ40ipeOjVSoK4TEHVd6nbSd9fApiHIw5A=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "0c5678df521e1407884205fe3ce3cf1d7df297db",
+        "rev": "cf28ee258fd5f9a52de6b9865cdb93a1f96d09b7",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1700342017,
-        "narHash": "sha256-HaibwlWH5LuqsaibW3sIVjZQtEM/jWtOHX4Nk93abGE=",
+        "lastModified": 1702148972,
+        "narHash": "sha256-h2jODFP6n+ABrUWcGRSVPRFfLOkM9TJ2pO+h+9JcaL0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "decdf666c833a325cb4417041a90681499e06a41",
+        "rev": "b8f33c044e51de6dde3ad80a9676945e0e4e3227",
         "type": "github"
       },
       "original": {
@@ -153,17 +175,20 @@
     "poetry2nix": {
       "inputs": {
         "flake-utils": "flake-utils_2",
+        "nix-github-actions": "nix-github-actions",
         "nixpkgs": [
           "course-management",
           "nixpkgs"
-        ]
+        ],
+        "systems": "systems_3",
+        "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1688440303,
-        "narHash": "sha256-hFfOyityHdVFI0HNM+sqZfpi9Fbvjvy0N9O7FjuqPWY=",
+        "lastModified": 1701399357,
+        "narHash": "sha256-QSGP2J73HQ4gF5yh+MnClv2KUKzcpTmikdmV8ULfq2E=",
         "owner": "nix-community",
         "repo": "poetry2nix",
-        "rev": "04714155bae013fb9b207e54d1faf9f0c3d08706",
+        "rev": "7acb78166a659d6afe9b043bb6fe5cb5e86bb75e",
         "type": "github"
       },
       "original": {
@@ -190,11 +215,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1700362823,
-        "narHash": "sha256-/H7XgvrYM0IbkpWkcdfkOH0XyBM5ewSWT1UtaLvOgKY=",
+        "lastModified": 1702177193,
+        "narHash": "sha256-J2409SyXROoUHYXVy9h4Pj0VU8ReLuy/mzBc9iK4DBg=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "49a87c6c827ccd21c225531e30745a9a6464775c",
+        "rev": "d806e546f96c88cd9f7d91c1c19ebc99ba6277d9",
         "type": "github"
       },
       "original": {
@@ -232,6 +257,42 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "id": "systems",
+        "type": "indirect"
+      }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "course-management",
+          "poetry2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1699786194,
+        "narHash": "sha256-3h3EH1FXQkIeAuzaWB+nK0XK54uSD46pp+dMD3gAcB4=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "e82f32aa7f06bbbd56d7b12186d555223dc399d1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 99931d8..d3c807e 100755
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   inputs = {
-    nixpkgs.url = github:nixos/nixpkgs/nixos-23.05;
-    sops-nix.url = github:Mic92/sops-nix;
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
+    sops-nix.url = "github:Mic92/sops-nix";
     sops-nix.inputs.nixpkgs.follows = "nixpkgs";
     nix-index-database.url = "github:nix-community/nix-index-database";
     nix-index-database.inputs.nixpkgs.follows = "nixpkgs";