diff --git a/src/rules.js b/src/rules.js
index c289d88..460684a 100644
--- a/src/rules.js
+++ b/src/rules.js
@@ -3,6 +3,7 @@ import path from "path";
 import { BUILTIN_RULES } from "./config/rules";
 
 (() => {
+  // rules
   try {
     const data = JSON.stringify(BUILTIN_RULES, null, "  ");
     const file = path.resolve(
@@ -14,4 +15,14 @@ import { BUILTIN_RULES } from "./config/rules";
   } catch (err) {
     console.error(err);
   }
+
+  // version
+  try {
+    var pjson = require("../package.json");
+    const file = path.resolve(__dirname, "../build/web/version.txt");
+    fs.writeFileSync(file, pjson.version);
+    console.info(`Version file generated: ${file}`);
+  } catch (err) {
+    console.error(err);
+  }
 })();