diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e0e2720..0109641 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,13 +4,13 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
-    - uses: actions/setup-node@v3
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
       with:
-        node-version: '18.x'
+        node-version: '20.x'
     - run: npm install
     - run: npm test
     - run: npm run coverage
-    - uses: coverallsapp/github-action@master
+    - uses: coverallsapp/github-action@v2
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/package.json b/package.json
index 8fd0166..c64fc0c 100644
--- a/package.json
+++ b/package.json
@@ -19,18 +19,18 @@
   ],
   "author": "jazz-soft (https://jazz-soft.net/)",
   "dependencies": {
-    "jzz": "^1.8.1"
+    "jzz": "^1.8.4"
   },
   "devDependencies": {
-    "eslint": "^9.0.0",
+    "eslint": "^9.4.0",
     "grunt": "^1.6.1",
     "grunt-contrib-jshint": "^3.2.0",
     "grunt-contrib-uglify": "^5.2.2",
-    "jsdom": "^24.0.0",
-    "jzz-synth-tiny": "^1.3.9",
+    "jsdom": "^24.1.0",
+    "jzz-synth-tiny": "^1.4.0",
     "mocha": "^10.4.0",
-    "nyc": "^15.1.0",
-    "web-midi-test": "^1.2.7"
+    "nyc": "^17.0.0",
+    "web-midi-test": "^1.2.8"
   },
   "repository": {
     "type": "git",