diff --git a/packages/react-reconciler/src/ReactChildFiber.js b/packages/react-reconciler/src/ReactChildFiber.js
index 2cf9791f8a2d..bed780c2b100 100644
--- a/packages/react-reconciler/src/ReactChildFiber.js
+++ b/packages/react-reconciler/src/ReactChildFiber.js
@@ -9,8 +9,8 @@
 
 import type {ReactElement} from 'shared/ReactElementType';
 import type {ReactPortal} from 'shared/ReactTypes';
-import type {Fiber} from 'react-reconciler/src/ReactFiber';
-import type {ExpirationTime} from 'react-reconciler/src/ReactFiberExpirationTime';
+import type {Fiber} from './ReactFiber';
+import type {ExpirationTime} from './ReactFiberExpirationTime';
 
 import getComponentName from 'shared/getComponentName';
 import {Placement, Deletion} from 'shared/ReactSideEffectTags';
diff --git a/packages/react-reconciler/src/ReactCurrentFiber.js b/packages/react-reconciler/src/ReactCurrentFiber.js
index 661c46fffe83..05ecd6bdd531 100644
--- a/packages/react-reconciler/src/ReactCurrentFiber.js
+++ b/packages/react-reconciler/src/ReactCurrentFiber.js
@@ -7,6 +7,8 @@
  * @flow
  */
 
+import type {Fiber} from './ReactFiber';
+
 import ReactSharedInternals from 'shared/ReactSharedInternals';
 import {
   IndeterminateComponent,
@@ -21,8 +23,6 @@ import getComponentName from 'shared/getComponentName';
 
 const ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
 
-import type {Fiber} from './ReactFiber';
-
 type LifeCyclePhase = 'render' | 'getChildContext';
 
 function describeFiber(fiber: Fiber): string {
diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.js b/packages/react-reconciler/src/ReactFiberBeginWork.js
index 69375a4718af..92f4ccef7954 100644
--- a/packages/react-reconciler/src/ReactFiberBeginWork.js
+++ b/packages/react-reconciler/src/ReactFiberBeginWork.js
@@ -8,7 +8,7 @@
  */
 
 import type {ReactProviderType, ReactContext} from 'shared/ReactTypes';
-import type {Fiber} from 'react-reconciler/src/ReactFiber';
+import type {Fiber} from './ReactFiber';
 import type {FiberRoot} from './ReactFiberRoot';
 import type {ExpirationTime} from './ReactFiberExpirationTime';
 import type {SuspenseState} from './ReactFiberSuspenseComponent';
diff --git a/packages/react-reconciler/src/ReactFiberScheduler.js b/packages/react-reconciler/src/ReactFiberScheduler.js
index 6aaa4e411354..99183a6278db 100644
--- a/packages/react-reconciler/src/ReactFiberScheduler.js
+++ b/packages/react-reconciler/src/ReactFiberScheduler.js
@@ -78,6 +78,9 @@ import {
   noTimeout,
   prepareForCommit,
   resetAfterCommit,
+  scheduleTimeout,
+  cancelTimeout,
+  noTimeout,
 } from './ReactFiberHostConfig';
 import {
   markPendingPriorityLevel,
diff --git a/packages/react-reconciler/src/ReactFiberTreeReflection.js b/packages/react-reconciler/src/ReactFiberTreeReflection.js
index a5ace9487fce..00161bf35106 100644
--- a/packages/react-reconciler/src/ReactFiberTreeReflection.js
+++ b/packages/react-reconciler/src/ReactFiberTreeReflection.js
@@ -7,7 +7,7 @@
  * @flow
  */
 
-import type {Fiber} from 'react-reconciler/src/ReactFiber';
+import type {Fiber} from './ReactFiber';
 
 import invariant from 'shared/invariant';
 import warningWithoutStack from 'shared/warningWithoutStack';
diff --git a/packages/react-reconciler/src/ReactFiberUnwindWork.js b/packages/react-reconciler/src/ReactFiberUnwindWork.js
index 26ab5bea0f11..6ec30e8d7800 100644
--- a/packages/react-reconciler/src/ReactFiberUnwindWork.js
+++ b/packages/react-reconciler/src/ReactFiberUnwindWork.js
@@ -61,11 +61,12 @@ import {
   isAlreadyFailedLegacyErrorBoundary,
   retrySuspendedRoot,
 } from './ReactFiberScheduler';
-import {NoWork, Sync} from './ReactFiberExpirationTime';
 
 import invariant from 'shared/invariant';
 import maxSigned31BitInt from './maxSigned31BitInt';
 import {
+  NoWork,
+  Sync,
   expirationTimeToMs,
   LOW_PRIORITY_EXPIRATION,
 } from './ReactFiberExpirationTime';