diff --git a/types/keytar/index.d.ts b/types/keytar/index.d.ts
index 5a27c0c984..f807b19a9f 100644
--- a/types/keytar/index.d.ts
+++ b/types/keytar/index.d.ts
@@ -1,6 +1,6 @@
-// Type definitions for keytar 3.0.2
+// Type definitions for keytar 4.0.2
 // Project: http://atom.github.io/node-keytar/
-// Definitions by: Milan Burda <https://github.com/miniak/>, Brendan Forster <https://github.com/shiftkey/>
+// Definitions by: Milan Burda <https://github.com/miniak/>, Brendan Forster <https://github.com/shiftkey/>, Hari Juturu <https://github.com/juturu/>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 
@@ -10,9 +10,9 @@
  * @param service The string service name.
  * @param account The string account name.
  *
- * @returns the string password or null on failures.
+ * @returns A promise for the password string.
  */
-export declare function getPassword(service: string, account: string): string | null;
+export declare function getPassword(service: string, account: string): Promise<string | null>;
 
 /**
  * Add the password for the service and account to the keychain.
@@ -21,9 +21,9 @@ export declare function getPassword(service: string, account: string): string |
  * @param account The string account name.
  * @param password The string password.
  *
- * @returns true on success, false on failure.
+ * @returns A promise for the set password completion.
  */
-export declare function addPassword(service: string, account: string, password: string): boolean;
+export declare function setPassword(service: string, account: string, password: string): Promise<void>;
 
 /**
  * Delete the stored password for the service and account.
@@ -31,29 +31,15 @@ export declare function addPassword(service: string, account: string, password:
  * @param service The string service name.
  * @param account The string account name.
  *
- * @returns true on success, false on failure
+ * @returns A promise for the deletion status. True on success.
  */
-export declare function deletePassword(service: string, account: string): boolean;
-
-/**
- * Replace the password for the service and account in the keychain.
- *
- * This is a simple convenience function that internally calls deletePassword(service, account)
- * followed by addPassword(service, account, password).
- *
- * @param service The string service name.
- * @param account The string account name.
- * @param password The string password.
- *
- * @returns true on success, false on failure.
- */
-export declare function replacePassword(service: string, account: string, password: string): boolean;
+export declare function deletePassword(service: string, account: string): Promise<boolean>;
 
 /**
  * Find a password for the service in the keychain.
  *
  * @param service The string service name.
  *
- * @returns the string password or null on failures.
+ * @returns A promise for the password string.
  */
-export declare function findPassword(service: string): string | null;
+export declare function findPassword(service: string): Promise<string | null>;
diff --git a/types/keytar/keytar-tests.ts b/types/keytar/keytar-tests.ts
index d523050650..f6873838c2 100644
--- a/types/keytar/keytar-tests.ts
+++ b/types/keytar/keytar-tests.ts
@@ -1,13 +1,13 @@
 
 import keytar = require('keytar');
 
-let success: boolean = false;
+let setResult: Promise<void>;
+setResult = keytar.setPassword('keytar-tests', 'username', 'password');
 
-success = keytar.addPassword('keytar-tests', 'username', 'password');
+let success: Promise<boolean>;
 success = keytar.deletePassword('keytar-tests', 'username');
-success = keytar.replacePassword('keytar-tests', 'username', 'password');
 
-let password: string = '';
+let password: Promise<string | null>;
 
 password = keytar.findPassword('keytar-tests');
 password = keytar.getPassword('keytar-tests', 'username');