diff --git a/devtool/public/manifest.firefox.json b/devtool/public/manifest.firefox.json
index f967c3c4..4d351f91 100644
--- a/devtool/public/manifest.firefox.json
+++ b/devtool/public/manifest.firefox.json
@@ -1,6 +1,6 @@
 {
   "name": "__MSG_name__",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "__MSG_description__",
   "short_name": "morfeo",
   "author": "Mauro Erta",
@@ -13,7 +13,9 @@
     "128": "img/icon-128.png"
   },
   "background": {
-    "scripts": ["background.bundle.js"]
+    "scripts": [
+      "background.bundle.js"
+    ]
   },
   "browser_action": {
     "default_icon": {
@@ -32,11 +34,20 @@
   "devtools_page": "devtool.html",
   "content_scripts": [
     {
-      "matches": ["http://*/*", "https://*/*"],
-      "js": ["contentScript.bundle.js"],
+      "matches": [
+        "http://*/*",
+        "https://*/*"
+      ],
+      "js": [
+        "contentScript.bundle.js"
+      ],
       "run_at": "document_start",
       "all_frames": false
     }
   ],
-  "permissions": ["clipboardWrite", "tabs", "<all_urls>"]
+  "permissions": [
+    "clipboardWrite",
+    "tabs",
+    "<all_urls>"
+  ]
 }
diff --git a/devtool/public/manifest.json b/devtool/public/manifest.json
index 3f206a67..596f58d4 100644
--- a/devtool/public/manifest.json
+++ b/devtool/public/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 3,
   "name": "__MSG_name__",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "__MSG_description__",
   "author": "Mauro Erta",
   "devtools_page": "devtool.html",
@@ -23,17 +23,28 @@
     }
   },
   "externally_connectable": {
-    "ids": ["*"]
+    "ids": [
+      "*"
+    ]
   },
-  "permissions": ["activeTab", "clipboardWrite"],
+  "permissions": [
+    "activeTab",
+    "clipboardWrite"
+  ],
   "background": {
     "service_worker": "background.bundle.js"
   },
   "content_scripts": [
     {
-      "matches": ["<all_urls>"],
-      "exclude_globs": ["https://www.google*"],
-      "js": ["contentScript.bundle.js"],
+      "matches": [
+        "<all_urls>"
+      ],
+      "exclude_globs": [
+        "https://www.google*"
+      ],
+      "js": [
+        "contentScript.bundle.js"
+      ],
       "run_at": "document_start",
       "all_frames": true
     }
diff --git a/package.json b/package.json
index 97f7084f..87eb3b31 100644
--- a/package.json
+++ b/package.json
@@ -31,8 +31,9 @@
     "publish": "npm run reset && npx lerna publish from-package --yes --no-verify-access",
     "version": "npx lerna version patch --no-push --no-git-tag-version --conventional-commits",
     "version:minor": "npx lerna version minor --no-push --no-git-tag-version --conventional-commits",
-    "postversion": "ts-node scripts/version.ts",
-    "postversion:minor": "npm run postversion"
+    "version:devtool": "ts-node scripts/version-devtool.ts",
+    "postversion": "ts-node scripts/version.ts && npm run version:devtool",
+    "postversion:minor": "npm run postversion -- minor"
   },
   "dependencies": {
     "react": "^17.0.2",
diff --git a/scripts/version-devtool.ts b/scripts/version-devtool.ts
new file mode 100644
index 00000000..594796da
--- /dev/null
+++ b/scripts/version-devtool.ts
@@ -0,0 +1,56 @@
+import * as fs from 'fs';
+import * as path from 'path';
+
+const args = process.argv.slice(2);
+const [VERSION_TYPE] = args;
+
+const DEVTOOL_PUBLIC_PATH = path.join(__dirname, '../devtool', 'public');
+
+const DEVTOOL_MANIFEST_PATH = path.join(DEVTOOL_PUBLIC_PATH, 'manifest.json');
+const MOZILLA_DEVTOOL_MANIFEST_PATH = path.join(
+  DEVTOOL_PUBLIC_PATH,
+  'manifest.firefox.json',
+);
+
+const devtoolManifest = JSON.parse(
+  fs.readFileSync(DEVTOOL_MANIFEST_PATH, { encoding: 'utf8' }),
+);
+
+const mozillaDevtoolManifest = JSON.parse(
+  fs.readFileSync(MOZILLA_DEVTOOL_MANIFEST_PATH, { encoding: 'utf8' }),
+);
+
+const currentVersion = devtoolManifest.version as string;
+
+let [major = 0, minor = 0, patch = 0] = currentVersion
+  .split('.')
+  .map((number: string) => {
+    const parsed = Number.parseInt(number);
+    return Number.isNaN(parsed) ? 0 : parsed;
+  });
+
+if (VERSION_TYPE === 'major') {
+  major += 1;
+  minor = 0;
+  patch = 0;
+} else if (VERSION_TYPE === 'minor') {
+  minor += 1;
+  patch = 0;
+} else {
+  patch += 1;
+}
+
+const newVersion = [major, minor, patch].join('.');
+
+devtoolManifest.version = newVersion;
+mozillaDevtoolManifest.version = newVersion;
+
+fs.writeFileSync(
+  DEVTOOL_MANIFEST_PATH,
+  JSON.stringify(devtoolManifest, undefined, 2) + '\n',
+);
+
+fs.writeFileSync(
+  MOZILLA_DEVTOOL_MANIFEST_PATH,
+  JSON.stringify(mozillaDevtoolManifest, undefined, 2) + '\n',
+);