diff --git a/rollup.config.js b/rollup.config.js
index 5b5da75..d03e92e 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,18 +1,23 @@
 const fs = require("fs");
 const path = require("path");
 const { execSync } = require("child_process");
-import svelte from "rollup-plugin-svelte";
 import commonjs from "@rollup/plugin-commonjs";
 import resolve from "@rollup/plugin-node-resolve";
+import css from "rollup-plugin-css-only";
 import livereload from "rollup-plugin-livereload";
+import svelte from "rollup-plugin-svelte";
+import svg from "rollup-plugin-svg";
 import { terser } from "rollup-plugin-terser";
 import sveltePreprocess from "svelte-preprocess";
-import css from "rollup-plugin-css-only";
-import svg from "rollup-plugin-svg";
 
 const production = !process.env.ROLLUP_WATCH;
 
-const buildVersion = execSync("git rev-parse --short HEAD").toString();
+let buildVersion;
+if (production) {
+  buildVersion = process.env.GIT_REV; // latest commit hash
+} else {
+  buildVersion = execSync("git rev-parse --short HEAD").toString();
+}
 fs.writeFileSync(
   "build-info.js",
   "export default " +