diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1122164..b0e4be9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,8 +1,6 @@
 name: CI
 
 on:
-  push:
-    branches: [main]
   pull_request:
 
 jobs:
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
new file mode 100644
index 0000000..cf6f9a2
--- /dev/null
+++ b/.github/workflows/pages.yml
@@ -0,0 +1,45 @@
+name: Pages
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - index.html
+      - .github/workflows/pages.yml
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Configure Pages
+        uses: actions/configure-pages@v5
+
+      - name: Prepare site
+        run: |
+          mkdir -p _site
+          cp index.html _site/index.html
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: _site
+
+      - name: Deploy Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
diff --git a/scripts/release-plan.ts b/scripts/release-plan.ts
index 136f01c..95baa2d 100644
--- a/scripts/release-plan.ts
+++ b/scripts/release-plan.ts
@@ -35,6 +35,7 @@ const RELEASE_LABELS: Record<string, ReleaseLevel> = {
   'release:minor': 'minor',
   'release:major': 'major',
 };
+const PACKAGE_NAME = 'dispatchkit';
 
 function git(args: string[]): string {
   return execFileSync('git', args, { encoding: 'utf8' }).trim();
@@ -53,8 +54,9 @@ export function headReleaseTag(): string | null {
   return gitOrNull(['tag', '--points-at', 'HEAD', '--list', 'v*']);
 }
 
-export function latestReleaseTag(): string | null {
-  return gitOrNull(['describe', '--tags', '--abbrev=0', '--match', 'v*']);
+export function highestReleaseTag(): string | null {
+  const output = gitOrNull(['tag', '--list', 'v*', '--sort=-version:refname']);
+  return output?.split('\n')[0] ?? null;
 }
 
 export function normalizeTagVersion(tag: string | null): string {
@@ -66,6 +68,17 @@ export function normalizeTagVersion(tag: string | null): string {
   return version;
 }
 
+export function resolveBaseVersion(input: {
+  publishedVersion: string | null;
+  highestTag: string | null;
+}): string {
+  if (input.publishedVersion) {
+    return normalizeTagVersion(input.publishedVersion);
+  }
+
+  return normalizeTagVersion(input.highestTag);
+}
+
 export function resolveReleaseLevel(labels: string[]): ReleaseLevel {
   const matches = labels
     .map((label) => RELEASE_LABELS[label])
@@ -157,6 +170,21 @@ async function fetchMergedPullRequest(repo: string, sha: string, token: string):
   return merged;
 }
 
+function latestPublishedVersion(packageName: string): string | null {
+  try {
+    const raw = execFileSync('npm', ['view', packageName, 'version', '--json'], {
+      encoding: 'utf8',
+      stdio: ['ignore', 'pipe', 'ignore'],
+    }).trim();
+    if (!raw) return null;
+
+    const parsed = JSON.parse(raw) as string;
+    return semver.valid(parsed) ?? null;
+  } catch {
+    return null;
+  }
+}
+
 function writeOutputs(plan: ReleasePlan): void {
   const outputPath = process.env.GITHUB_OUTPUT;
   if (!outputPath) return;
@@ -187,9 +215,11 @@ async function main(): Promise<void> {
 
   const pr = await fetchMergedPullRequest(repo, sha, token);
   const labels = (pr.labels ?? []).map((label) => label.name).filter((value): value is string => Boolean(value));
+  const publishedVersion = latestPublishedVersion(PACKAGE_NAME);
+  const highestTag = highestReleaseTag();
   const plan = buildReleasePlan({
     headTag: headReleaseTag(),
-    lastTag: latestReleaseTag(),
+    lastTag: `v${resolveBaseVersion({ publishedVersion, highestTag })}`,
     labels,
     prNumber: pr.number,
     prTitle: pr.title,
diff --git a/test/release-plan.test.ts b/test/release-plan.test.ts
index e5890dc..f918cbd 100644
--- a/test/release-plan.test.ts
+++ b/test/release-plan.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest';
-import { buildReleasePlan, normalizeTagVersion, resolveReleaseLevel } from '../scripts/release-plan.ts';
+import { buildReleasePlan, normalizeTagVersion, resolveBaseVersion, resolveReleaseLevel } from '../scripts/release-plan.ts';
 
 describe('release-plan', () => {
   it('defaults to a patch release when no release label is present', () => {
@@ -69,4 +69,12 @@ describe('release-plan', () => {
   it('normalizes missing tags to 0.0.0', () => {
     expect(normalizeTagVersion(null)).toBe('0.0.0');
   });
+
+  it('prefers npm as the canonical published version', () => {
+    expect(resolveBaseVersion({ publishedVersion: '0.1.14', highestTag: 'v0.1.13' })).toBe('0.1.14');
+  });
+
+  it('falls back to the highest tag when the package is not published yet', () => {
+    expect(resolveBaseVersion({ publishedVersion: null, highestTag: 'v0.1.13' })).toBe('0.1.13');
+  });
 });