diff --git a/.github/workflows/publish-tag.yml b/.github/workflows/publish-tag.yml
new file mode 100644
index 0000000..09ffeff
--- /dev/null
+++ b/.github/workflows/publish-tag.yml
@@ -0,0 +1,62 @@
+name: Cut a new tag (also auto updates package.json and package-lock.json)
+
+on:
+  workflow_dispatch:
+    inputs:
+      release_type:
+        description: 'Version bump type (patch, minor, major)'
+        required: true
+        default: 'patch'
+
+jobs:
+  bump-version:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Set up Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '20'
+
+    - name: Get triggering user's email
+      run: |
+        user_email=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" https://api.github.com/users/${{ github.actor }} | jq -r '.email')
+        if [ -z "$user_email" ] || [ "$user_email" == "null" ]; then
+          user_email="github-actions@github.com"
+        fi
+        echo "user_email=$user_email" >> $GITHUB_ENV
+    
+    - name: Configure Git with the triggering user's info
+      run: |
+        git config user.name "${{ github.actor }}"
+        git config user.email "${{ github.actor_id }}+${{ github.actor }}@users.noreply.github.com"
+
+    - name: Bump version, update manifest, commit and tag
+      run: |
+        set -euo pipefail
+
+        npm install
+
+        # 1) Bump package.json + package-lock.json but DO NOT commit/tag yet
+        npm version ${{ github.event.inputs.release_type }} --no-git-tag-version
+
+        # 2) Read the new version from package.json
+        NEW_VERSION=$(node -p "require('./package.json').version")
+        echo "New version is: $NEW_VERSION"
+
+        # 3) Update manifest.json's "version" field to match
+        jq --arg v "$NEW_VERSION" '.version = $v' manifest.json > manifest.json.tmp
+        mv manifest.json.tmp manifest.json
+
+        # 4) Commit everything and create an annotated tag
+        git add package.json package-lock.json manifest.json
+        git commit -m "chore: bump version to $NEW_VERSION"
+        git tag -a "v$NEW_VERSION" -m "v$NEW_VERSION"
+
+        # 5) Push commit and tag
+        git push --follow-tags
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/manifest.json b/manifest.json
index 7cb6141..14e1233 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,7 @@
 {
   "requiredSdkVersion": "~0.0.66",
   "name": "ChatMentionPlugin",
+  "version": "0.3.0",
   "javascriptEntrypointUrl": "ChatMentionPlugin.js"
 }