diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index 01357f9..aa9b328 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -7,27 +7,36 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [windows-latest, macos-latest, ubuntu-16.04]
+        os: [windows-latest, macos-latest, ubuntu-20.04]
     runs-on: ${{ matrix.os }}
     name: Build
     steps:
       - uses: actions/checkout@v2.1.0
       - uses: actions/setup-node@v1
         with:
-          node-version: 14.x
+          node-version: 16.x
+      - run: sudo apt install -y musl musl-tools
+        if: ${{ matrix.os == 'ubuntu-20.04' }}
       - run: npm run fetch-libutp
       - run: npm install
       - run: npm run prebuild
       - run: npm run prebuild-ia32
         if: ${{ matrix.os == 'windows-latest' }}
+      - run: npm run prebuild-musl
+        if: ${{ matrix.os == 'ubuntu-20.04' }}
+        env:
+          CC: musl-gcc
+          CXX: musl-gcc
       - uses: actions/upload-artifact@v2
         with:
           name: ${{ matrix.os }}
           path: ./prebuilds
   release:
     name: Create Release
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-latest
     needs: build
+    permissions:
+      contents: write
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -51,7 +60,7 @@ jobs:
       - name: Compress builds
         run: |
           tar --create --verbose --file="./${{ steps.get_version.outputs.VERSION }}-windows-all.tar" --directory "prebuilds/windows-latest" .
-          tar --create --verbose --file="./${{ steps.get_version.outputs.VERSION }}-linux-x86.tar" --directory "prebuilds/ubuntu-16.04" .
+          tar --create --verbose --file="./${{ steps.get_version.outputs.VERSION }}-linux-x86.tar" --directory "prebuilds/ubuntu-20.04" .
           tar --create --verbose --file="./${{ steps.get_version.outputs.VERSION }}-osx-x86.tar" --directory "prebuilds/macos-latest" .
       - name: Upload x86 build
         uses: actions/upload-release-asset@v1
diff --git a/.gitmodules b/.gitmodules
index 3da5228..218e15f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "libutp"]
 	path = deps/libutp
-	url = git://github.com/mafintosh/libutp.git
+	url = https://github.com/mafintosh/libutp.git
diff --git a/package.json b/package.json
index cb8edea..512dd70 100644
--- a/package.json
+++ b/package.json
@@ -9,8 +9,9 @@
     "test": "standard && tape test/net.js test/sockets.js test/udp.js",
     "install": "node-gyp-build",
     "fetch-libutp": "git submodule update --recursive --init",
-    "prebuild": "prebuildify --napi --strip",
-    "prebuild-ia32": "prebuildify --napi --strip --arch=ia32"
+    "prebuild": "prebuildify --napi --strip --tag-libc",
+    "prebuild-musl": "prebuildify --napi --strip --libc=musl --tag-libc",
+    "prebuild-ia32": "prebuildify --napi --strip --arch=ia32 --tag-libc"
   },
   "bin": {
     "ucat": "./ucat.js"
@@ -28,7 +29,8 @@
   "devDependencies": {
     "prebuildify": "^4.1.2",
     "standard": "^14.3.1",
-    "tape": "^4.11.0"
+    "tape": "^4.11.0",
+    "node-gyp": "^10.1.0"
   },
   "repository": {
     "type": "git",