diff --git a/should/should.d.ts b/should/should.d.ts
index 7241c0389b..b3c37846a2 100644
--- a/should/should.d.ts
+++ b/should/should.d.ts
@@ -1,6 +1,6 @@
-// Type definitions for should.js 1.2.2
+// Type definitions for should.js 3.1.2
 // Project: https://github.com/visionmedia/should.js
-// Definitions by: Alex Varju <https://github.com/varju/>
+// Definitions by: Alex Varju <https://github.com/varju/> and Maxime LUCE <https://github.com/SomaticIT/> (1.3+)
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 interface Object {
@@ -9,12 +9,13 @@ interface Object {
 
 interface ShouldAssertion {
   // basic grammar
+  a: ShouldAssertion;
   an: ShouldAssertion;
-  // a: ShouldAssertion;
   and: ShouldAssertion;
   be: ShouldAssertion;
   have: ShouldAssertion;
   with: ShouldAssertion;
+  of: ShouldAssertion;
   not: ShouldAssertion;
 
   // validators
@@ -23,31 +24,58 @@ interface ShouldAssertion {
   ok: ShouldAssertion;
   true: ShouldAssertion;
   false: ShouldAssertion;
+  NaN: ShouldAssertion;
+  Infinity: ShouldAssertion;
+  Array: ShouldAssertion;
+  Object: ShouldAssertion;
+  String: ShouldAssertion;
+  Boolean: ShouldAssertion;
+  Number: ShouldAssertion;
+  Error: ShouldAssertion;
+  Function: ShouldAssertion;
   eql(expected: any, description?: string): ShouldAssertion;
   equal(expected: any, description?: string): ShouldAssertion;
   within(start: number, finish: number, description?: string): ShouldAssertion;
   approximately(value: number, delta: number, description?: string): ShouldAssertion;
-  a(expected: any, description?: string): ShouldAssertion;
+  type(expected: any, description?: string): ShouldAssertion;
   instanceof(constructor: Function, description?: string): ShouldAssertion;
   above(n: number, description?: string): ShouldAssertion;
   below(n: number, description?: string): ShouldAssertion;
+  match(other: {}, description?: string): ShouldAssertion;
+  match(other: (val: any) => any, description?: string): ShouldAssertion;
   match(regexp: RegExp, description?: string): ShouldAssertion;
+  match(other: any, description?: string): ShouldAssertion;
+  matchEach(other: {}, description?: string): ShouldAssertion;
+  matchEach(other: (val: any) => any, description?: string): ShouldAssertion;
+  matchEach(regexp: RegExp, description?: string): ShouldAssertion;
+  matchEach(other: any, description?: string): ShouldAssertion;
   length(n: number, description?: string): ShouldAssertion;
   property(name: string, description?: string): ShouldAssertion;
   property(name: string, val: any, description?: string): ShouldAssertion;
+  properties(names: string[]): ShouldAssertion;
+  properties(name: string): ShouldAssertion;
+  properties(descriptor: any): ShouldAssertion;
+  properties(...properties: string[]): ShouldAssertion;
   ownProperty(name: string, description?: string): ShouldAssertion;
-  include(obj: any, description?: string): ShouldAssertion;
-  includeEql(obj: any[], description?: string): ShouldAssertion;
   contain(obj: any): ShouldAssertion;
+  containEql(obj: any): ShouldAssertion;
+  containDeep(obj: any): ShouldAssertion;
   keys(...allKeys: string[]): ShouldAssertion;
   keys(allKeys: string[]): ShouldAssertion;
   header(field: string, val?: string): ShouldAssertion;
   status(code: number): ShouldAssertion;
   json: ShouldAssertion;
   html: ShouldAssertion;
+  startWith(expected: string, message?: any): ShouldAssertion;
+  endWith(expected: string, message?: any): ShouldAssertion;
   throw(message?: any): ShouldAssertion;
 
+  // deprecated
+  include(obj: any, description?: string): ShouldAssertion;
+  includeEql(obj: any[], description?: string): ShouldAssertion;
+
   // aliases
+  exactly(expected: any, description?: string): ShouldAssertion;
   instanceOf(constructor: Function, description?: string): ShouldAssertion;
   throwError(message?: any): ShouldAssertion;
   lengthOf(n: number, description?: string): ShouldAssertion;
@@ -65,6 +93,8 @@ interface ShouldInternal {
 }
 
 interface Internal extends ShouldInternal {
+  (obj: any): ShouldAssertion;
+
   // node.js's assert functions
   fail(actual: any, expected: any, message: string, operator: string): void;
   assert(value: any, message: string): void;
@@ -78,8 +108,11 @@ interface Internal extends ShouldInternal {
   throws(block: any, error?: any, message?: string): void;
   doesNotThrow(block: any, message?: string): void;
   ifError(value: any): void;
+  inspect(value: any, obj: any): any;
 }
 
 declare module "should" {
   export = Internal;
 }
+
+declare var should: Internal;