diff --git a/test-app/app/app.js b/test-app/app/app.js
index d084bd2..3f55325 100644
--- a/test-app/app/app.js
+++ b/test-app/app/app.js
@@ -1,8 +1,26 @@
 import Application from 'ember-strict-application-resolver';
 import { entries as serviceEntries } from 'ember-page-title/service-registry';
 import { entries as templateEntries } from 'ember-page-title/template-registry';
+import {
+  dependencySatisfies,
+  importSync,
+  macroCondition,
+} from '@embroider/macros';
 
-import setupInspector from "@embroider/legacy-inspector-support/ember-source-4.12";
+let setupInspector;
+if (macroCondition(dependencySatisfies('ember-source', '>= 4.12.0'))) {
+  setupInspector = importSync(
+    '@embroider/legacy-inspector-support/ember-source-4.12',
+  ).default;
+} else if (macroCondition(dependencySatisfies('ember-source', '>= 4.8.0'))) {
+  setupInspector = importSync(
+    '@embroider/legacy-inspector-support/ember-source-4.8',
+  ).default;
+} else {
+  setupInspector = importSync(
+    '@embroider/legacy-inspector-support/ember-source-3.28',
+  ).default;
+}
 
 export default class App extends Application {
   inspector = setupInspector(this);