diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8343a36..28dab34 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.1.1] - 2023-03-31
+
+### Fixed
+
+- practice and listen functionality restored
+
 ## [0.1.0] - 2023-03-29
 
 ### Added
diff --git a/flake.nix b/flake.nix
index af653b6..82d008e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,7 +4,7 @@
     utils.url = "github:numtide/flake-utils";
   };
   outputs = inputs@{ self, ... }:
-    inputs.utils.lib.eachDefaultSystem (system:
+    inputs.utils.lib.eachSystem ["x86_64-linux"] (system:
       let pkgs = inputs.nixpkgs.legacyPackages.${system}; in
       {
         # formatter = pkgs.nodejs.pkgs.prettier; # TODO: write inplace
@@ -15,7 +15,7 @@
           pname = package.name;
           version = package.version;
           src = ./.;
-          npmDepsHash = "sha256-8txl04A36fbM7nMvRSX9X/o/FSOF6TyxXNSDnkiFx94=";
+          npmDepsHash = "sha256-sXfR5aKIKdsVKTp5TEdUkPapvYr3Lkli7y1c7f2cBBI=";
           nativeBuildInputs = [
             python310
             nodejs.pkgs.node-gyp-build
diff --git a/package.json b/package.json
index 7f59a6a..eeca486 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "midi.academy",
   "description": "Interactive MIDI learning",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "author": "",
   "homepage": "https://midi.academy",
   "scripts": {