diff --git a/types/package-json/index.d.ts b/types/package-json/index.d.ts
index bfa8e17bb6..e57902875b 100644
--- a/types/package-json/index.d.ts
+++ b/types/package-json/index.d.ts
@@ -9,6 +9,6 @@ interface PackageJsonOptions {
     allVersions?: boolean;
 }
 
-declare function packageJson(name: string, options?: PackageJsonOptions): {};
+declare function packageJson(name: string, options?: PackageJsonOptions): Promise<{}>;
 
 export = packageJson;
diff --git a/types/package-json/package-json-tests.ts b/types/package-json/package-json-tests.ts
index c10ef298ac..98f14b1192 100644
--- a/types/package-json/package-json-tests.ts
+++ b/types/package-json/package-json-tests.ts
@@ -1,7 +1,10 @@
 import packageJson = require('package-json');
 
-const pkg = packageJson('package-json', {
+let pkg: {};
+packageJson('package-json', {
     version: '1.2.3',
     fullMetadata: true,
     allVersions: true,
+}).then(x => {
+    pkg = x;
 });