diff --git a/index.d.ts b/index.d.ts
index 785b969..6999dc6 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,32 +1,37 @@
-interface BaseSignOptions {
-  app: string;
-  identity?: string;
-  platform?: string;
-  keychain?: string;
-}
+declare module "electron-osx-sign" {
+  interface BaseSignOptions {
+    app: string;
+    identity?: string;
+    platform?: string;
+    keychain?: string;
+  }
 
-interface SignOptions extends BaseSignOptions {
-  binaries?: string[];
-  entitlements?: string;
-  'entitlements-inherit'?: string;
-  'gatekeeper-assess'?: boolean;
-  ignore?: string;
-  'pre-auto-entitlements'?: boolean;
-  'pre-embed-provisioning-profile'?: boolean;
-  'provisioning-profile'?: string;
-  'requirements'?: string;
-  'type'?: string;
-  version?: string;
-}
+  interface SignOptions extends BaseSignOptions {
+    binaries?: string[];
+    entitlements?: string;
+    'entitlements-inherit'?: string;
+    'gatekeeper-assess'?: boolean;
+    ignore?: string;
+    'pre-auto-entitlements'?: boolean;
+    'pre-embed-provisioning-profile'?: boolean;
+    'provisioning-profile'?: string;
+    'requirements'?: string;
+    'type'?: string;
+    version?: string;
+    'identity-validation'?: boolean;
+  }
 
-export function sign(opts: SignOptions, callback: (error: Error) => void): void;
-export function signAsync(opts: SignOptions): Promise<any>;
+  export function sign(opts: SignOptions, callback: (error: Error) => void): void;
 
-interface FlatOptions extends BaseSignOptions {
-  install?: string;
-  pkg?: string;
-  scripts?: string;
-}
+  export function signAsync(opts: SignOptions): Promise<any>;
 
-export function flat(opts: FlatOptions, callback: (error: Error) => void): void;
-export function flatAsync(opts: FlatOptions): Promise<any>;
+  interface FlatOptions extends BaseSignOptions {
+    install?: string;
+    pkg?: string;
+    scripts?: string;
+  }
+
+  export function flat(opts: FlatOptions, callback: (error: Error) => void): void;
+
+  export function flatAsync(opts: FlatOptions): Promise<any>;
+}
diff --git a/package.json b/package.json
index ff6945b..33f4e70 100644
--- a/package.json
+++ b/package.json
@@ -18,25 +18,25 @@
   },
   "homepage": "https://github.com/electron-userland/electron-osx-sign",
   "dependencies": {
-    "bluebird": "^3.4.6",
+    "bluebird": "^3.4.7",
     "compare-version": "^0.1.2",
-    "debug": "^2.3.2",
-    "isbinaryfile": "^3.0.1",
+    "debug": "^2.6.1",
+    "isbinaryfile": "^3.0.2",
     "minimist": "^1.2.0",
     "plist": "^2.0.1",
     "tempfile": "^1.1.1"
   },
   "devDependencies": {
-    "electron-download": "^3.0.1",
-    "eslint": "^3.10.0",
-    "eslint-config-eslint": "^3.0.0",
-    "extract-zip": "^1.5.0",
+    "electron-download": "^4.0.0",
+    "eslint": "^3.16.1",
+    "eslint-config-eslint": "^4.0.0",
+    "extract-zip": "^1.6.0",
     "mkdirp": "^0.5.1",
-    "rimraf": "^2.5.4",
+    "rimraf": "^2.6.1",
     "run-series": "^1.1.4",
     "run-waterfall": "^1.1.3",
-    "standard": "^8.5.0",
-    "tape": "^4.6.2"
+    "standard": "^8.6.0",
+    "tape": "^4.6.3"
   },
   "scripts": {
     "code-standard": "standard",
diff --git a/sign.js b/sign.js
index 9a5c5fa..571cebf 100644
--- a/sign.js
+++ b/sign.js
@@ -219,6 +219,9 @@ var signAsync = module.exports.signAsync = function (opts) {
       var promise
       if (opts.identity) {
         debuglog('`identity` passed in arguments.')
+        if (opts['identity-validation'] === false) {
+          return Promise.resolve()
+        }
         promise = findIdentitiesAsync(opts, opts.identity)
       } else {
         debugwarn('No `identity` passed in arguments...')