diff --git a/adonis-typings/index.ts b/adonis-typings/index.ts
index 3549e6c..5ea34ba 100644
--- a/adonis-typings/index.ts
+++ b/adonis-typings/index.ts
@@ -19,12 +19,14 @@ declare module '@ioc:Kaperskyguru/Adonis-Cache' {
 	export interface CacheInteface {
 		get(name: string): Promise<any>
 		set(name: string, data: any, duration: number): Promise<any>
-		update(name: string, data: any, duration: number): Promise<any>
+		forever(name: string, data: any): Promise<any>
+		update(name: string, data: any, duration?: number): Promise<any>
 		delete(name: string): Promise<Boolean>
 		remember(name: string, minutes: number, callback: Function): Promise<any>
 		rememberForever(name: string, callback: Function): Promise<any>
 		many(keys: Array<string>): Promise<object>
 		setMany(data: object, minutes: number): Promise<any>
+		flush(): Promise<void>
 	}
 	const Cache: CacheInteface
 	export default Cache
diff --git a/src/Contracts/CacheInterface.ts b/src/Contracts/CacheInterface.ts
index c8af37c..d1134b0 100644
--- a/src/Contracts/CacheInterface.ts
+++ b/src/Contracts/CacheInterface.ts
@@ -8,5 +8,6 @@ interface CacheInterface {
 	rememberForever(name: string, callback: Function): Promise<any>
 	many(keys: Array<string>): Promise<object>
 	setMany(data: object, minutes: number): Promise<any>
+	flush(): Promise<void>
 }
 export default CacheInterface
diff --git a/src/Contracts/EngineInterface.ts b/src/Contracts/EngineInterface.ts
index f081374..8f70f21 100644
--- a/src/Contracts/EngineInterface.ts
+++ b/src/Contracts/EngineInterface.ts
@@ -1,6 +1,6 @@
 interface EngineInterface {
-	get(name: String): Promise<any>
-	set(name: String, data: any, duration: Number): Promise<any>
+	get(name: string): Promise<any>
+	set(name: string, data: any, duration: number): Promise<any>
 	delete(name: String): Promise<Boolean>
 	flush(): Promise<void>
 }