diff --git a/tests/e2e/utils/withFailTimeout.js b/tests/e2e/utils/withFailTimeout.ts
similarity index 61%
rename from tests/e2e/utils/withFailTimeout.js
rename to tests/e2e/utils/withFailTimeout.ts
index d7ac50a64e00..bac21c58a169 100644
--- a/tests/e2e/utils/withFailTimeout.js
+++ b/tests/e2e/utils/withFailTimeout.ts
@@ -1,12 +1,13 @@
 import CONFIG from '../config';
 
-const TIMEOUT = process.env.INTERACTION_TIMEOUT || CONFIG.INTERACTION_TIMEOUT;
+// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing -- nullish coalescing doesn't achieve the same result in this case
+const TIMEOUT = Number(process.env.INTERACTION_TIMEOUT || CONFIG.INTERACTION_TIMEOUT);
 
-const withFailTimeout = (promise, name) =>
+const withFailTimeout = (promise: Promise<void>, name: string): Promise<void> =>
     new Promise((resolve, reject) => {
         const timeoutId = setTimeout(() => {
             reject(new Error(`"${name}": Interaction timed out after ${(TIMEOUT / 1000).toFixed(0)}s`));
-        }, Number(TIMEOUT));
+        }, TIMEOUT);
 
         promise
             .then((value) => {