diff --git a/flake.lock b/flake.lock
index 8c1375e2..68af5337 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,16 +20,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1704290814,
-        "narHash": "sha256-LWvKHp7kGxk/GEtlrGYV68qIvPHkU9iToomNFGagixU=",
+        "lastModified": 1714685007,
+        "narHash": "sha256-Q4ddhb5eC5pwci0QhAapFwnsc8X8H9ZMQiWpsofBsDc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "70bdadeb94ffc8806c0570eb5c2695ad29f0e421",
+        "rev": "383ffe076d9b633a2e97b6e4dd97fc15fcf30159",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index cdc09846..4a63a33a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Flake for building scenic.";
 
   inputs = {
-    nixpkgs = { url = "github:NixOS/nixpkgs/nixos-23.05"; };
+    nixpkgs = { url = "github:NixOS/nixpkgs/nixos-23.11"; };
     flake-utils = { url = "github:numtide/flake-utils"; };
   };
   outputs = { self, nixpkgs, flake-utils }:
@@ -17,7 +17,7 @@
     {
       devShell = pkgs.mkShell {
         buildInputs = [
-          elixir
+          elixir_1_16
           elixir_ls
         ] ++ optional stdenv.isLinux inotify-tools
           ++ optional stdenv.isDarwin terminal-notifier