diff --git a/.dockerignore b/.dockerignore
index 8d49741..aff0042 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -3,3 +3,6 @@
 Dockerfile
 .dockerignore
 docker-compose.yml
+node_modules
+tests
+vitest.config.js
diff --git a/.gitignore b/.gitignore
index c2658d7..0045a54 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 node_modules/
+js/version.js
diff --git a/Dockerfile b/Dockerfile
index ff02415..1febd11 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,6 @@
 FROM nginx:alpine
 COPY nginx.conf /etc/nginx/conf.d/default.conf
 COPY . /usr/share/nginx/html
+RUN awk -F'"' '/"version"/{printf "const VERSION = \"%s\";\n", $4; exit}' \
+    /usr/share/nginx/html/package.json \
+    > /usr/share/nginx/html/js/version.js
diff --git a/index.html b/index.html
index 404a2c4..5d1e275 100644
--- a/index.html
+++ b/index.html
@@ -177,6 +177,7 @@
 </div>
 
 <script src="https://cdnjs.cloudflare.com/ajax/libs/sql.js/1.10.2/sql-wasm.js"></script>
+<script src="js/version.js" onerror="window.VERSION=null"></script>
 <script src="js/config.js"></script>
 <script src="js/db.js"></script>
 <script src="js/ui.js"></script>
diff --git a/js/app.js b/js/app.js
index f989686..288d202 100644
--- a/js/app.js
+++ b/js/app.js
@@ -37,10 +37,7 @@ window.addEventListener('popstate', e => {
 
 // ── Bootstrap ─────────────────────────────────────────────────────────────────
 
-fetch('/package.json')
-  .then(r => r.json())
-  .then(pkg => { document.getElementById('nav-version').textContent = `v${pkg.version}`; })
-  .catch(() => {});
+if (VERSION) document.getElementById('nav-version').textContent = `v${VERSION}`;
 
 initDB().then(() => {
   renderDashboard();
diff --git a/package.json b/package.json
index 23a79e9..02cff78 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "catalyst",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "type": "module",
   "scripts": {
     "test": "vitest run",
-    "test:watch": "vitest"
+    "test:watch": "vitest",
+    "version:write": "node -e \"const {version}=JSON.parse(require('fs').readFileSync('package.json','utf8'));require('fs').writeFileSync('js/version.js','const VERSION = \\\"'+version+'\\\";\\n');\""
   },
   "devDependencies": {
     "vitest": "^2.0.0",