diff --git a/.github/workflows/build-publish-npm.yaml b/.github/workflows/build-publish-npm.yaml
new file mode 100644
index 0000000..ae62bda
--- /dev/null
+++ b/.github/workflows/build-publish-npm.yaml
@@ -0,0 +1,34 @@
+name: build & publish npm
+
+on:
+  push:
+    tags:
+      - "v**"
+    branches:
+      - main
+  workflow_dispatch:
+  pull_request: {} # NOTE: worktree would be a temporal merge commit
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version: "20"
+
+      - uses: pnpm/action-setup@v4
+
+      - run: git submodule init && git submodule update
+
+      - run: pnpm install
+
+      - run: make patch-upstream lib-build
+
+      - uses: JS-DevTools/npm-publish@v3
+        with:
+          token: ${{ secrets.NPM_TOKEN }}
+          dry-run: ${{ !(github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')) }}
+          package: ./socket.io-serverless/package.json
\ No newline at end of file
diff --git a/socket.io b/socket.io
index d0fc720..91e1c8b 160000
--- a/socket.io
+++ b/socket.io
@@ -1 +1 @@
-Subproject commit d0fc72042068e7eaef448941add617f05e1ec236
+Subproject commit 91e1c8b3584054db6072046404a24e79a17c1367
diff --git a/socket.io-serverless/package.json b/socket.io-serverless/package.json
index 6f8a920..0e2c07f 100644
--- a/socket.io-serverless/package.json
+++ b/socket.io-serverless/package.json
@@ -1,7 +1,7 @@
 {
   "name": "socket.io-serverless",
   "description": "A custom socket.io build to run in Cloudflare workers.",
-  "version": "0.1.0-beta4",
+  "version": "0.2.0-rc1",
   "type": "module",
   "dependencies": {},
   "files": [