diff --git a/packages/jest-util/src/isPromise.ts b/packages/jest-util/src/isPromise.ts
index 5e77f9e2cf7a..07617e927a8b 100644
--- a/packages/jest-util/src/isPromise.ts
+++ b/packages/jest-util/src/isPromise.ts
@@ -5,6 +5,9 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+// capture global.Promise before it may potentially be overwritten
+const Promise = global.Promise;
+
 // see ES2015 spec 25.4.4.5, https://stackoverflow.com/a/38339199
 const isPromise = (candidate: unknown): candidate is Promise<unknown> =>
   Promise.resolve(candidate) === candidate;