diff --git a/scripts/rollup/shims/react-native/ReactFeatureFlags.js b/scripts/rollup/shims/react-native/ReactFeatureFlags.js
index 5a2b32e747..44add71fc5 100644
--- a/scripts/rollup/shims/react-native/ReactFeatureFlags.js
+++ b/scripts/rollup/shims/react-native/ReactFeatureFlags.js
@@ -12,7 +12,7 @@
 const ReactFeatureFlags = {
   debugRenderPhaseSideEffects: false,
   debugRenderPhaseSideEffectsForStrictMode: false,
-  warnAboutDeprecatedLifecycles: false,
+  warnAboutDeprecatedLifecycles: true,
 };
 
 module.exports = ReactFeatureFlags;