diff --git a/types/bluebird-global/bluebird-global-tests.ts b/types/bluebird-global/bluebird-global-tests.ts
index 0464b188cd..b6bbb915e2 100644
--- a/types/bluebird-global/bluebird-global-tests.ts
+++ b/types/bluebird-global/bluebird-global-tests.ts
@@ -40,3 +40,7 @@ function testPromiseRejection() {
             return value.toUpperCase();
         });
 }
+
+function testGithubTicket28081Regression() {
+    Promise.resolve([3]).map((n: number) => true);
+}
diff --git a/types/bluebird-global/index.d.ts b/types/bluebird-global/index.d.ts
index 0d8ac4eeb3..7f38f981f1 100644
--- a/types/bluebird-global/index.d.ts
+++ b/types/bluebird-global/index.d.ts
@@ -67,52 +67,52 @@ declare global {
      * Patch all instance method
      */
     interface Promise<T> {
-        all: typeof Bluebird.prototype.all;
-        any: typeof Bluebird.prototype.any;
-        asCallback: typeof Bluebird.prototype.asCallback;
-        bind: typeof Bluebird.prototype.bind;
-        call: typeof Bluebird.prototype.call;
-        cancel: typeof Bluebird.prototype.cancel;
-        // catch: typeof Bluebird.prototype.catch;
-        caught: typeof Bluebird.prototype.caught;
-        delay: typeof Bluebird.prototype.delay;
-        disposer: typeof Bluebird.prototype.disposer;
-        done: typeof Bluebird.prototype.done;
-        each: typeof Bluebird.prototype.each;
-        error: typeof Bluebird.prototype.error;
-        filter: typeof Bluebird.prototype.filter;
-        // finally: typeof Bluebird.prototype.finally;
-        get: typeof Bluebird.prototype.get;
-        isCancelled: typeof Bluebird.prototype.isCancelled;
-        isFulfilled: typeof Bluebird.prototype.isFulfilled;
-        isPending: typeof Bluebird.prototype.isPending;
-        isRejected: typeof Bluebird.prototype.isRejected;
-        isResolved: typeof Bluebird.prototype.isResolved;
-        lastly: typeof Bluebird.prototype.lastly;
-        map: typeof Bluebird.prototype.map;
-        mapSeries: typeof Bluebird.prototype.mapSeries;
-        nodeify: typeof Bluebird.prototype.nodeify;
-        props: typeof Bluebird.prototype.props;
-        race: typeof Bluebird.prototype.race;
-        reason: typeof Bluebird.prototype.reason;
-        reduce: typeof Bluebird.prototype.reduce;
-        reflect: typeof Bluebird.prototype.reflect;
-        return: typeof Bluebird.prototype.return;
-        some: typeof Bluebird.prototype.some;
-        spread: typeof Bluebird.prototype.spread;
-        suppressUnhandledRejections: typeof Bluebird.prototype.suppressUnhandledRejections;
-        tap: typeof Bluebird.prototype.tap;
-        tapCatch: typeof Bluebird.prototype.tapCatch;
-        // then: typeof Bluebird.prototype.then;
-        thenReturn: typeof Bluebird.prototype.thenReturn;
-        thenThrow: typeof Bluebird.prototype.thenThrow;
-        catchReturn: typeof Bluebird.prototype.catchReturn;
-        catchThrow: typeof Bluebird.prototype.catchThrow;
-        throw: typeof Bluebird.prototype.throw;
-        timeout: typeof Bluebird.prototype.timeout;
-        toJSON: typeof Bluebird.prototype.toJSON;
-        toString: typeof Bluebird.prototype.toString;
-        value: typeof Bluebird.prototype.value;
+        all: Bluebird<T>["all"];
+        any: Bluebird<T>["any"];
+        asCallback: Bluebird<T>["asCallback"];
+        bind: Bluebird<T>["bind"];
+        call: Bluebird<T>["call"];
+        cancel: Bluebird<T>["cancel"];
+        // catch: Bluebird<T>["catch"];
+        caught: Bluebird<T>["caught"];
+        delay: Bluebird<T>["delay"];
+        disposer: Bluebird<T>["disposer"];
+        done: Bluebird<T>["done"];
+        each: Bluebird<T>["each"];
+        error: Bluebird<T>["error"];
+        filter: Bluebird<T>["filter"];
+        // finally: Bluebird<T>["finally"];
+        get: Bluebird<T>["get"];
+        isCancelled: Bluebird<T>["isCancelled"];
+        isFulfilled: Bluebird<T>["isFulfilled"];
+        isPending: Bluebird<T>["isPending"];
+        isRejected: Bluebird<T>["isRejected"];
+        isResolved: Bluebird<T>["isResolved"];
+        lastly: Bluebird<T>["lastly"];
+        map: Bluebird<T>["map"];
+        mapSeries: Bluebird<T>["mapSeries"];
+        nodeify: Bluebird<T>["nodeify"];
+        props: Bluebird<T>["props"];
+        race: Bluebird<T>["race"];
+        reason: Bluebird<T>["reason"];
+        reduce: Bluebird<T>["reduce"];
+        reflect: Bluebird<T>["reflect"];
+        return: Bluebird<T>["return"];
+        some: Bluebird<T>["some"];
+        spread: Bluebird<T>["spread"];
+        suppressUnhandledRejections: Bluebird<T>["suppressUnhandledRejections"];
+        tap: Bluebird<T>["tap"];
+        tapCatch: Bluebird<T>["tapCatch"];
+        // then: Bluebird<T>["then"];
+        thenReturn: Bluebird<T>["thenReturn"];
+        thenThrow: Bluebird<T>["thenThrow"];
+        catchReturn: Bluebird<T>["catchReturn"];
+        catchThrow: Bluebird<T>["catchThrow"];
+        throw: Bluebird<T>["throw"];
+        timeout: Bluebird<T>["timeout"];
+        toJSON: Bluebird<T>["toJSON"];
+        toString: Bluebird<T>["toString"];
+        value: Bluebird<T>["value"];
 
         /*
          * Copy&paste ::then and ::catch from lib.es2015.promise.d.ts, because Bluebird's typings are not