diff --git a/scripts/cache-bust-zoo-modeling-app-assets.mjs b/scripts/cache-bust-zoo-modeling-app-assets.mjs
new file mode 100644
index 000000000..98dbe158b
--- /dev/null
+++ b/scripts/cache-bust-zoo-modeling-app-assets.mjs
@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+
+import { createHash } from "node:crypto";
+import { readFileSync, writeFileSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const assetReferencePattern =
+  /(\b(?:src|href)=")(\.\/assets\/[^"?]+\.(?:css|js))(?:\?v=[^"]+)?(")/g;
+
+export function cacheBustZooModelingAppAssets(outputDir) {
+  const indexPath = path.join(outputDir, "index.html");
+  const source = readFileSync(indexPath, "utf8");
+  let versionedAssetCount = 0;
+
+  const versionedSource = source.replace(
+    assetReferencePattern,
+    (_match, prefix, assetReference, suffix) => {
+      const assetPath = path.join(outputDir, assetReference.slice(2));
+      const version = createHash("sha256")
+        .update(readFileSync(assetPath))
+        .digest("hex")
+        .slice(0, 12);
+      versionedAssetCount += 1;
+      return `${prefix}${assetReference}?v=${version}${suffix}`;
+    }
+  );
+
+  if (versionedAssetCount === 0) {
+    throw new Error(`No versioned HiCAD assets found in ${indexPath}`);
+  }
+
+  writeFileSync(indexPath, versionedSource);
+  return versionedAssetCount;
+}
+
+const invokedPath = process.argv[1] ? path.resolve(process.argv[1]) : "";
+if (invokedPath === fileURLToPath(import.meta.url)) {
+  const outputDir = path.resolve(
+    process.argv[2] || "public/vendor/zoo-modeling-app"
+  );
+  const assetCount = cacheBustZooModelingAppAssets(outputDir);
+  console.log(`Versioned ${assetCount} HiCAD entry assets in ${outputDir}`);
+}
diff --git a/scripts/vendor-zoo-modeling-app.mjs b/scripts/vendor-zoo-modeling-app.mjs
index 33a0b12c5..dfeddebe8 100644
--- a/scripts/vendor-zoo-modeling-app.mjs
+++ b/scripts/vendor-zoo-modeling-app.mjs
@@ -13,6 +13,7 @@ import {
 import { cp } from "node:fs/promises";
 import path from "node:path";
 import { gzipSync } from "node:zlib";
+import { cacheBustZooModelingAppAssets } from "./cache-bust-zoo-modeling-app-assets.mjs";
 
 const repoUrl = "https://github.com/KittyCAD/modeling-app.git";
 const repoRef =
@@ -338,6 +339,7 @@ async function main() {
   if (!existsSync(path.join(buildDir, "index.html"))) {
     throw new Error("Zoo Design Studio build did not produce index.html");
   }
+  cacheBustZooModelingAppAssets(buildDir);
 
   rmSync(outputDir, { force: true, recursive: true });
   mkdirSync(path.dirname(outputDir), { recursive: true });