diff --git a/Libraries/Animated/src/NativeAnimatedModule.js b/Libraries/Animated/src/NativeAnimatedModule.js
index 23d738bbffc..80ece9d69d0 100644
--- a/Libraries/Animated/src/NativeAnimatedModule.js
+++ b/Libraries/Animated/src/NativeAnimatedModule.js
@@ -14,7 +14,7 @@ import type {TurboModule} from '../../TurboModule/RCTExport';
 import * as TurboModuleRegistry from '../../TurboModule/TurboModuleRegistry';
 
 type EndResult = {finished: boolean};
-type EndCallback = (result: EndResult) => void | Promise<void>;
+type EndCallback = (result: EndResult) => void;
 
 export type EventMapping = {|
   nativeEventPath: Array<string>,
diff --git a/Libraries/Animated/src/animations/Animation.js b/Libraries/Animated/src/animations/Animation.js
index d8a82ed502a..cb175e1ecbf 100644
--- a/Libraries/Animated/src/animations/Animation.js
+++ b/Libraries/Animated/src/animations/Animation.js
@@ -14,7 +14,7 @@ const NativeAnimatedHelper = require('../NativeAnimatedHelper');
 import type AnimatedValue from '../nodes/AnimatedValue';
 
 export type EndResult = {finished: boolean};
-export type EndCallback = (result: EndResult) => void | Promise<void>;
+export type EndCallback = (result: EndResult) => void;
 
 export type AnimationConfig = {
   isInteraction?: boolean,