diff --git a/manifest.json b/manifest.json
index 76edcbc..fcd5520 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "minimum_chrome_version": "138",
   "name": "OpenScript",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "A lightweight user script manager for modern browsers",
   "action": {
     "default_popup": "src/popup.html",
diff --git a/package-lock.json b/package-lock.json
index 18c6ae2..4c567e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "openscript",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "openscript",
-      "version": "1.0.1",
+      "version": "1.0.2",
       "dependencies": {
         "lucide": "^0.475.0"
       },
diff --git a/package.json b/package.json
index 6275eee..1782eef 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openscript",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/src/popup.js b/src/popup.js
index f37ab83..80f8665 100644
--- a/src/popup.js
+++ b/src/popup.js
@@ -4,6 +4,7 @@ import {
 import { parseMeta, getBoilerplate } from './utils/parser.js';
 import { isUserScriptsAvailable } from './utils/userScripts.js';
 import { renderIcons, icon } from './utils/icons.js';
+import { VERSION } from './version.js';
 
 // Application State
 const state = {
@@ -137,7 +138,7 @@ const renderHeader = () => `
       <img src="/icons/icon-16.png" class="w-4 h-4 rounded-sm" />
       <span class="font-bold text-sm tracking-tight text-slate-900 flex items-center gap-1.5">
         OpenScript
-        <span class="text-[10px] font-mono px-1 py-0.2 rounded bg-slate-100 text-sky-700 border border-slate-200">1.0</span>
+        <span class="text-[10px] font-mono px-1 py-0.2 rounded bg-slate-100 text-sky-700 border border-slate-200">${VERSION}</span>
       </span>
     </div>
     <nav class="flex items-center gap-1.5 text-xs font-medium">
diff --git a/src/utils/userScripts.js b/src/utils/userScripts.js
index 482e6aa..cbd0af9 100644
--- a/src/utils/userScripts.js
+++ b/src/utils/userScripts.js
@@ -1,5 +1,6 @@
 import { getScripts, saveScripts, getSecrets } from './storage.js';
 import { normalizeMatch, parseMeta } from './parser.js';
+import { VERSION } from '../version.js';
 
 const STORAGE_MESSAGE = 'OPEN_SCRIPT_STORAGE';
 
@@ -33,7 +34,7 @@ ${code}
     delete: key => call('delete', key).then(() => undefined),
     list: () => call('list').then(result => result.keys),
   });
-  const OpenScript = Object.freeze({ version: '1.0.0', env, storage });
+  const OpenScript = Object.freeze({ version: '${VERSION}', env, storage });
   globalThis.OpenScript = OpenScript;
   globalThis.env = env;
   return [OpenScript, env];
diff --git a/src/version.js b/src/version.js
new file mode 100644
index 0000000..926d3f2
--- /dev/null
+++ b/src/version.js
@@ -0,0 +1 @@
+export const VERSION = '1.0.2';
diff --git a/tests/version.test.js b/tests/version.test.js
new file mode 100644
index 0000000..d67c386
--- /dev/null
+++ b/tests/version.test.js
@@ -0,0 +1,16 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+import { VERSION } from '../src/version.js';
+
+const read = file => readFile(new URL(`../${file}`, import.meta.url), 'utf8').then(JSON.parse);
+
+test('release versions stay synchronized', async () => {
+  const [manifest, pkg, lock] = await Promise.all(
+    ['manifest.json', 'package.json', 'package-lock.json'].map(read)
+  );
+  assert.equal(VERSION, manifest.version);
+  assert.equal(VERSION, pkg.version);
+  assert.equal(VERSION, lock.version);
+  assert.equal(VERSION, lock.packages[''].version);
+});