diff --git a/packages/shared/forks/ReactFeatureFlags.native-fb-dynamic.js b/packages/shared/forks/ReactFeatureFlags.native-fb-dynamic.js
index 14141938b9027..33bc07e6238c9 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-fb-dynamic.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-fb-dynamic.js
@@ -21,6 +21,7 @@ export const alwaysThrottleDisappearingFallbacks = __VARIANT__;
 export const alwaysThrottleRetries = __VARIANT__;
 export const consoleManagedByDevToolsDuringStrictMode = __VARIANT__;
 export const enableAsyncActions = __VARIANT__;
+export const enableBigIntSupport = __VARIANT__;
 export const enableComponentStackLocations = __VARIANT__;
 export const enableDeferRootSchedulingToMicrotask = __VARIANT__;
 export const enableInfiniteRenderLoopDetection = __VARIANT__;
diff --git a/packages/shared/forks/ReactFeatureFlags.native-fb.js b/packages/shared/forks/ReactFeatureFlags.native-fb.js
index e8fb123513533..1ace7eae1f0c2 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-fb.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-fb.js
@@ -23,6 +23,7 @@ export const {
   alwaysThrottleRetries,
   consoleManagedByDevToolsDuringStrictMode,
   enableAsyncActions,
+  enableBigIntSupport,
   enableComponentStackLocations,
   enableDeferRootSchedulingToMicrotask,
   enableInfiniteRenderLoopDetection,
@@ -102,7 +103,5 @@ export const disableStringRefs = false;
 export const enableReactTestRendererWarning = false;
 export const disableLegacyMode = false;
 
-export const enableBigIntSupport = false;
-
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
index c3ff077cb0860..86d9046186744 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
@@ -92,7 +92,7 @@ export const disableStringRefs = false;
 export const enableReactTestRendererWarning = false;
 export const disableLegacyMode = false;
 
-export const enableBigIntSupport = false;
+export const enableBigIntSupport = true;
 
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);
diff --git a/packages/shared/forks/ReactFeatureFlags.www-dynamic.js b/packages/shared/forks/ReactFeatureFlags.www-dynamic.js
index f8ebfb050fc67..32fd025104096 100644
--- a/packages/shared/forks/ReactFeatureFlags.www-dynamic.js
+++ b/packages/shared/forks/ReactFeatureFlags.www-dynamic.js
@@ -15,6 +15,7 @@
 
 export const disableInputAttributeSyncing = __VARIANT__;
 export const disableIEWorkarounds = __VARIANT__;
+export const enableBigIntSupport = __VARIANT__;
 export const enableLegacyFBSupport = __VARIANT__;
 export const enableUseRefAccessWarning = __VARIANT__;
 export const disableSchedulerTimeoutInWorkLoop = __VARIANT__;
diff --git a/packages/shared/forks/ReactFeatureFlags.www.js b/packages/shared/forks/ReactFeatureFlags.www.js
index d0a2642418b33..907ab62ab52de 100644
--- a/packages/shared/forks/ReactFeatureFlags.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.www.js
@@ -17,6 +17,7 @@ const dynamicFeatureFlags: DynamicFeatureFlags = require('ReactFeatureFlags');
 export const {
   disableInputAttributeSyncing,
   disableIEWorkarounds,
+  enableBigIntSupport,
   enableTrustedTypesIntegration,
   enableLegacyFBSupport,
   enableDebugTracing,
@@ -116,8 +117,6 @@ export const enableServerComponentLogs = true;
 
 export const enableReactTestRendererWarning = false;
 
-export const enableBigIntSupport = false;
-
 // TODO: Roll out with GK. Don't keep as dynamic flag for too long, though,
 // because JSX is an extremely hot path.
 export const disableStringRefs = false;