diff --git a/scripts/jest/setupTests.js b/scripts/jest/setupTests.js
index abb358f817aa2..26f641effae88 100644
--- a/scripts/jest/setupTests.js
+++ b/scripts/jest/setupTests.js
@@ -310,4 +310,10 @@ if (process.env.REACT_CLASS_EQUIVALENCE_TEST) {
   };
 
   require('jasmine-check').install();
+
+  if (typeof window !== 'undefined') {
+    // FIXME: Possible bug in jest 27 + legacy fake timers?
+    delete window.setImmediate;
+    delete window.clearImmediate;
+  }
 }