diff --git a/functions.php b/functions.php
index 1d8f4a8..cc9e131 100644
--- a/functions.php
+++ b/functions.php
@@ -137,7 +137,7 @@ function radiate_widgets_init() {
 /**
  * Assign the Radiate version to a variable.
  */
-$radiate_theme = wp_get_theme( 'radiate' );
+$radiate_theme = wp_get_theme( get_template() );
 
 define( 'RADIATE_THEME_VERSION', $radiate_theme->get( 'Version' ) );
 
@@ -146,7 +146,7 @@ function radiate_widgets_init() {
  */
 function radiate_scripts() {
 	// Load our main stylesheet.
-	wp_enqueue_style( 'radiate-style', get_stylesheet_uri() );
+	wp_enqueue_style( 'radiate-style', get_stylesheet_uri(), array(), wp_get_theme()->get( 'Version' ) );
 
 	wp_enqueue_style( 'radiate-google-fonts', '//fonts.googleapis.com/css?family=Roboto|Merriweather:400,300&display=swap' );
 
@@ -157,7 +157,7 @@ function radiate_scripts() {
 
 	wp_enqueue_script( 'radiate-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20130115', true );
 
-	wp_enqueue_script( 'radiate-custom-js', get_template_directory_uri() . '/js/custom.js', array( 'jquery' ), false, true );
+	wp_enqueue_script( 'radiate-custom-js', get_template_directory_uri() . '/js/custom.js', array( 'jquery' ), RADIATE_THEME_VERSION, true );
 
 	$radiate_header_image_link = get_header_image();
 	wp_localize_script( 'radiate-custom-js', 'radiateScriptParam', array( 'radiate_image_link' => $radiate_header_image_link ) );
diff --git a/tests/e2e/specs/homepage/asset-versions.spec.ts b/tests/e2e/specs/homepage/asset-versions.spec.ts
new file mode 100644
index 0000000..5f1d228
--- /dev/null
+++ b/tests/e2e/specs/homepage/asset-versions.spec.ts
@@ -0,0 +1,35 @@
+import { test, expect } from "../../fixtures";
+/**
+ * @area homepage
+ * @tier fresh
+ * @guards radiate-pro#33
+ * @source fix/33-asset-versions 2026-09-30; functions.php
+ * @why The main stylesheet and custom.js were enqueued without a version, so
+ *      WordPress stamped them with the WP core version and a theme update
+ *      shipping new CSS/JS kept the old ?ver= (browsers and CDNs served stale
+ *      files). Guards that they carry the theme's own Version header. Reads the
+ *      Version from the theme's style.css, so it does not go stale on a release.
+ */
+test("the theme's own stylesheet and script are versioned with the theme version @fresh @homepage", async ({
+  page,
+  request,
+}) => {
+  await page.goto("/");
+
+  const styleHref = await page
+    .locator("link#radiate-style-css")
+    .getAttribute("href");
+  const scriptSrc = await page
+    .locator("script#radiate-custom-js-js")
+    .getAttribute("src");
+  expect(styleHref, "radiate-style-css href").toBeTruthy();
+  expect(scriptSrc, "radiate-custom-js src").toBeTruthy();
+
+  const css = await (await request.get(styleHref!.split("?")[0])).text();
+  const themeVersion = css.match(/^\s*Version:\s*(\S+)/m)?.[1];
+  expect(themeVersion, "Version header in style.css").toBeTruthy();
+
+  const ver = (url: string) => new URL(url, "http://x").searchParams.get("ver");
+  expect(ver(styleHref!)).toBe(themeVersion);
+  expect(ver(scriptSrc!)).toBe(themeVersion);
+});