diff --git a/tests/e2e/testRunner.js b/tests/e2e/testRunner.js
index 77b2033dfece..35d653a1bd79 100644
--- a/tests/e2e/testRunner.js
+++ b/tests/e2e/testRunner.js
@@ -79,8 +79,8 @@ try {
 
 const runTests = async () => {
     Logger.info('Installing apps and reversing port');
-    await installApp('android', config.MAIN_APP_PACKAGE, mainAppPath);
-    await installApp('android', config.DELTA_APP_PACKAGE, deltaAppPath);
+    await installApp(config.MAIN_APP_PACKAGE, mainAppPath);
+    await installApp(config.DELTA_APP_PACKAGE, deltaAppPath);
     await reversePort();
 
     // Start the HTTP server
diff --git a/tests/e2e/utils/installApp.js b/tests/e2e/utils/installApp.js
deleted file mode 100644
index 31dc205ecda1..000000000000
--- a/tests/e2e/utils/installApp.js
+++ /dev/null
@@ -1,26 +0,0 @@
-import execAsync from './execAsync';
-import * as Logger from './logger';
-
-/**
- * Installs the app on the currently connected device for the given platform.
- * It removes the app first if it already exists, so it's a clean installation.
- *
- * @param {String} platform
- * @param {String} packageName
- * @param {String} path
- * @returns {Promise<void>}
- */
-// eslint-disable-next-line default-param-last
-export default function (platform = 'android', packageName, path) {
-    if (platform !== 'android') {
-        throw new Error(`installApp() missing implementation for platform: ${platform}`);
-    }
-
-    // Uninstall first, then install
-    return execAsync(`adb uninstall ${packageName}`)
-        .catch((e) => {
-            // Ignore errors
-            Logger.warn('Failed to uninstall app:', e);
-        })
-        .finally(() => execAsync(`adb install ${path}`));
-}
diff --git a/tests/e2e/utils/installApp.ts b/tests/e2e/utils/installApp.ts
new file mode 100644
index 000000000000..b443344e6f02
--- /dev/null
+++ b/tests/e2e/utils/installApp.ts
@@ -0,0 +1,25 @@
+import type {ExecException} from 'child_process';
+import execAsync from './execAsync';
+import type {PromiseWithAbort} from './execAsync';
+import * as Logger from './logger';
+
+/**
+ * Installs the app on the currently connected device for the given platform.
+ * It removes the app first if it already exists, so it's a clean installation.
+ */
+export default function (packageName: string, path: string, platform = 'android'): PromiseWithAbort {
+    if (platform !== 'android') {
+        throw new Error(`installApp() missing implementation for platform: ${platform}`);
+    }
+
+    // Uninstall first, then install
+    return (
+        execAsync(`adb uninstall ${packageName}`)
+            .catch((error: ExecException) => {
+                // Ignore errors
+                Logger.warn('Failed to uninstall app:', error);
+            })
+            // eslint-disable-next-line @typescript-eslint/no-misused-promises
+            .finally(() => execAsync(`adb install ${path}`))
+    );
+}