diff --git a/packages/jest-mock/src/index.ts b/packages/jest-mock/src/index.ts
index 7251b0a9ec02..d84de0721903 100644
--- a/packages/jest-mock/src/index.ts
+++ b/packages/jest-mock/src/index.ts
@@ -87,16 +87,17 @@ type FunctionPropertyNames<T> = {
 }[keyof T] &
   string;
 
-interface Mock<T, Y extends Array<unknown> = Array<unknown>>
+export interface Mock<T, Y extends Array<unknown> = Array<unknown>>
   extends Function,
     MockInstance<T, Y> {
   new (...args: Y): T;
   (...args: Y): T;
 }
 
-interface SpyInstance<T, Y extends Array<unknown>> extends MockInstance<T, Y> {}
+export interface SpyInstance<T, Y extends Array<unknown>>
+  extends MockInstance<T, Y> {}
 
-interface MockInstance<T, Y extends Array<unknown>> {
+export interface MockInstance<T, Y extends Array<unknown>> {
   _isMockFunction: true;
   _protoImpl: Function;
   getMockName(): string;