diff --git a/Libraries/Animated/AnimatedImplementation.js b/Libraries/Animated/AnimatedImplementation.js
index e93c0dda4ccfc5..79fbc8a45c0acb 100644
--- a/Libraries/Animated/AnimatedImplementation.js
+++ b/Libraries/Animated/AnimatedImplementation.js
@@ -91,7 +91,7 @@ const diffClamp = function (
 
 const _combineCallbacks = function (
   callback: ?EndCallback,
-  config: {...AnimationConfig, ...},
+  config: $ReadOnly<{...AnimationConfig, ...}>,
 ) {
   if (callback && config.onComplete) {
     return (...args) => {
diff --git a/Libraries/Animated/NativeAnimatedHelper.js b/Libraries/Animated/NativeAnimatedHelper.js
index 363a4e05b30f5d..204f35900ef1a7 100644
--- a/Libraries/Animated/NativeAnimatedHelper.js
+++ b/Libraries/Animated/NativeAnimatedHelper.js
@@ -368,7 +368,7 @@ function assertNativeAnimatedModule(): void {
 let _warnedMissingNativeAnimated = false;
 
 function shouldUseNativeDriver(
-  config: {...AnimationConfig, ...} | EventConfig,
+  config: $ReadOnly<{...AnimationConfig, ...}> | EventConfig,
 ): boolean {
   if (config.useNativeDriver == null) {
     console.warn(
diff --git a/Libraries/Animated/animations/TimingAnimation.js b/Libraries/Animated/animations/TimingAnimation.js
index 748bb47cc6f313..859a5755f254ff 100644
--- a/Libraries/Animated/animations/TimingAnimation.js
+++ b/Libraries/Animated/animations/TimingAnimation.js
@@ -23,7 +23,7 @@ import type {RgbaValue} from '../nodes/AnimatedColor';
 
 import AnimatedColor from '../nodes/AnimatedColor';
 
-export type TimingAnimationConfig = {
+export type TimingAnimationConfig = $ReadOnly<{
   ...AnimationConfig,
   toValue:
     | number
@@ -40,15 +40,15 @@ export type TimingAnimationConfig = {
   easing?: (value: number) => number,
   duration?: number,
   delay?: number,
-};
+}>;
 
-export type TimingAnimationConfigSingle = {
+export type TimingAnimationConfigSingle = $ReadOnly<{
   ...AnimationConfig,
   toValue: number | AnimatedValue | AnimatedInterpolation,
   easing?: (value: number) => number,
   duration?: number,
   delay?: number,
-};
+}>;
 
 let _easeInOut;
 function easeInOut() {