diff --git a/types/scheduler/index.d.ts b/types/scheduler/index.d.ts
index 9df4054e8e..15644f5ae4 100644
--- a/types/scheduler/index.d.ts
+++ b/types/scheduler/index.d.ts
@@ -1,14 +1,10 @@
-// Type definitions for scheduler 0.10
+// Type definitions for scheduler 0.12
 // Project: https://reactjs.org/
 // Definitions by: Nathan Bierema <https://github.com/Methuselah96>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.1
 
-export interface Deadline {
-  timeRemaining(): number;
-  didTimeout: boolean;
-}
-export type FrameCallbackType = (deadline: Deadline) => FrameCallbackType | void;
+export type FrameCallbackType = () => FrameCallbackType | void;
 export interface CallbackNode {
   callback: FrameCallbackType;
   priorityLevel: number;
@@ -20,10 +16,15 @@ export interface CallbackNode {
 export const unstable_ImmediatePriority = 1;
 export const unstable_UserBlockingPriority = 2;
 export const unstable_NormalPriority = 3;
-export const unstable_IdlePriority = 4;
+export const unstable_IdlePriority = 5;
+export const unstable_LowPriority = 4;
 export function unstable_runWithPriority<T>(priorityLevel: number, eventHandler: () => T): T | undefined;
 export function unstable_scheduleCallback(callback: FrameCallbackType, deprecated_options?: { timeout: number}): CallbackNode;
 export function unstable_cancelCallback(callbackNode: CallbackNode): void;
 export function unstable_wrapCallback(callback: FrameCallbackType): () => FrameCallbackType | undefined;
 export function unstable_getCurrentPriorityLevel(): number;
+export function unstable_shouldYield(): boolean;
+export function unstable_continueExecution(): void;
+export function unstable_pauseExecution(): void;
+export function unstable_getFirstCallbackNode(): CallbackNode | null;
 export function unstable_now(): number;