diff --git a/nixos/tests/livebook-service.nix b/nixos/tests/livebook-service.nix
index 6a7b1a2a0c9f..56b4eb932f34 100644
--- a/nixos/tests/livebook-service.nix
+++ b/nixos/tests/livebook-service.nix
@@ -22,7 +22,7 @@ import ./make-test-python.nix ({ lib, pkgs, ... }: {
 
   testScript = { nodes, ... }:
     let
-      user = nodes.machine.config.users.users.alice;
+      user = nodes.machine.users.users.alice;
       sudo = lib.concatStringsSep " " [
         "XDG_RUNTIME_DIR=/run/user/${toString user.uid}"
         "sudo"
diff --git a/pkgs/servers/web-apps/livebook/default.nix b/pkgs/servers/web-apps/livebook/default.nix
index dee6017624dc..7c544ed7ee8f 100644
--- a/pkgs/servers/web-apps/livebook/default.nix
+++ b/pkgs/servers/web-apps/livebook/default.nix
@@ -1,7 +1,7 @@
 { lib, beamPackages, makeWrapper, rebar3, elixir, erlang, fetchFromGitHub, nixosTests }:
 beamPackages.mixRelease rec {
   pname = "livebook";
-  version = "0.11.3";
+  version = "0.12.0";
 
   inherit elixir;
 
@@ -13,13 +13,13 @@ beamPackages.mixRelease rec {
     owner = "livebook-dev";
     repo = "livebook";
     rev = "v${version}";
-    hash = "sha256-zUJM6OcXhHW8e09h2EKnfI9voF2k4AZ75ulQErNqjD0=";
+    hash = "sha256-ONNl88ZUjeAjYV8kdk4Tf6noQ7YSp/UN9OHEJHk7+5s=";
   };
 
   mixFodDeps = beamPackages.fetchMixDeps {
     pname = "mix-deps-${pname}";
     inherit src version;
-    hash = "sha256-7GvtxEIEbC0QZEYIoARaX9uIsf/CoGE6dX60/mCvkYI=";
+    hash = "sha256-JA0890hGShavn60khnevt4L0qEWKZnTmafImU4dkCr8=";
   };
 
   installPhase = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a24f6037805b..dd9919e89bf7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4050,8 +4050,8 @@ with pkgs;
   lesspass-cli = callPackage ../tools/security/lesspass-cli { };
 
   livebook = callPackage ../servers/web-apps/livebook {
-    elixir = elixir_1_15;
-    beamPackages = beamPackages.extend (self: super: { elixir = elixir_1_15; });
+    elixir = elixir_1_16;
+    beamPackages = beamPackages.extend (self: super: { elixir = elixir_1_16; });
   };
 
   lsix = callPackage ../tools/graphics/lsix { };