diff --git a/node_modules/wait-for-expect/lib/helpers.js b/node_modules/wait-for-expect/lib/helpers.js
index 27d63b7..aee6aa4 100644
--- a/node_modules/wait-for-expect/lib/helpers.js
+++ b/node_modules/wait-for-expect/lib/helpers.js
@@ -15,7 +15,9 @@ var globalObj = typeof window === "undefined" ? global : window; // Currently th
 
 function runWithRealTimers(callback) {
   var usingJestFakeTimers = // eslint-disable-next-line no-underscore-dangle
-  globalObj.setTimeout._isMockFunction && typeof jest !== "undefined";
+    typeof jest !== 'undefined' &&
+    setTimeout.clock != null &&
+    typeof setTimeout.clock.Date === 'function';
 
   if (usingJestFakeTimers) {
     jest.useRealTimers();