diff --git a/examples/angular/src/BUILD.bazel b/examples/angular/src/BUILD.bazel
index 3515db5ded..dd7e21a332 100644
--- a/examples/angular/src/BUILD.bazel
+++ b/examples/angular/src/BUILD.bazel
@@ -155,6 +155,7 @@ babel(
         "--no-babelrc",
         "--source-maps",
         "--presets=@babel/preset-env",
+        "--plugins=@babel/plugin-transform-modules-systemjs",
         "--out-dir",
         "$(@D)",
     ],
diff --git a/examples/angular/src/example/index.prod.html b/examples/angular/src/example/index.prod.html
index 42adb68b16..fc985f9dda 100644
--- a/examples/angular/src/example/index.prod.html
+++ b/examples/angular/src/example/index.prod.html
@@ -26,7 +26,7 @@
 
     <!-- TODO: figure out how diff. loading interacts with 
     https://www.npmjs.com/package/rollup-plugin-bundle-html -->
-    <script type="module" src="/bundle-es2015.min/index.js"></script>
-    <script nomodule="" src="/bundle-es5.min/index.js"></script>
+    <script type="module" src="/bundle-es2015.min/index.js?v=TIMESTAMP-VARIABLE"></script>
+    <script nomodule="">System.import('/bundle-es5.min/index.js?v=TIMESTAMP-VARIABLE')</script>
   </body>
 </html>
diff --git a/examples/angular/src/prerender.ts b/examples/angular/src/prerender.ts
index a613e9c508..eb8bf51056 100644
--- a/examples/angular/src/prerender.ts
+++ b/examples/angular/src/prerender.ts
@@ -14,7 +14,12 @@ const routes = process.argv.slice(routesFlagIdx + 1, process.argv.length);
 const outsFlagIdx = process.argv.findIndex(arg => arg === '--outs');
 const outs = process.argv.slice(outsFlagIdx + 1, routesFlagIdx);
 
-const document = readFileSync(rootIndexPath, { encoding: 'utf8' });
+const document = readFileSync(rootIndexPath, {encoding: 'utf8'})
+                     // Replace the timestamp placeholder for cache busting.
+                     // This is done per build and not per request, so the timestamp
+                     // remains the same, until the app (or more precisely the prerender
+                     // target) is rebuilt.
+                     .replace(/TIMESTAMP-VARIABLE/g, `${Date.now()}`);
 
 const win: any = domino.createWindow(document);
 declare const global: any;