diff --git a/Libraries/Image/Image.android.js b/Libraries/Image/Image.android.js
index a4269be70..422aeda2d 100644
--- a/Libraries/Image/Image.android.js
+++ b/Libraries/Image/Image.android.js
@@ -157,7 +157,7 @@ function abortPrefetch(requestId: number) {
  */
 async function queryCache(
   urls: Array<string>,
-): Promise<Map<string, 'memory' | 'disk'>> {
+): Promise<{[string]: 'memory' | 'disk' | 'disk/memory'}> {
   return await ImageLoader.queryCache(urls);
 }
 
diff --git a/Libraries/Image/Image.ios.js b/Libraries/Image/Image.ios.js
index d8ab46169..7fb0462bc 100644
--- a/Libraries/Image/Image.ios.js
+++ b/Libraries/Image/Image.ios.js
@@ -48,7 +48,7 @@ function prefetch(url: string) {
 
 async function queryCache(
   urls: Array<string>,
-): Promise<Map<string, 'memory' | 'disk' | 'disk/memory'>> {
+): Promise<{[string]: 'memory' | 'disk' | 'disk/memory'}> {
   return await ImageViewManager.queryCache(urls);
 }
 
diff --git a/RNTester/js/ImageExample.js b/RNTester/js/ImageExample.js
index 7b55b1c4f..8d2d9f18a 100644
--- a/RNTester/js/ImageExample.js
+++ b/RNTester/js/ImageExample.js
@@ -93,7 +93,7 @@ class NetworkImageCallbackExample extends React.Component<
                     `✔ Prefetch OK (+${new Date() - mountTime}ms)`,
                   );
                   Image.queryCache([IMAGE_PREFETCH_URL]).then(map => {
-                    const result = map.get(IMAGE_PREFETCH_URL);
+                    const result = map[IMAGE_PREFETCH_URL];
                     if (result) {
                       this._loadEventFired(
                         `✔ queryCache "${result}" (+${new Date() -