diff --git a/types/favicons/favicons-tests.ts b/types/favicons/favicons-tests.ts
index ce64c84e67..08d03717cf 100644
--- a/types/favicons/favicons-tests.ts
+++ b/types/favicons/favicons-tests.ts
@@ -6,7 +6,10 @@ let config: Partial<favicons.Configuration> = {
 
 config = {
     icons: {
-        android: true
+        android: true,
+        favicons: {
+            ovelayShadow: false
+        }
     }
 };
 
diff --git a/types/favicons/index.d.ts b/types/favicons/index.d.ts
index 730841dff9..70481f62ac 100644
--- a/types/favicons/index.d.ts
+++ b/types/favicons/index.d.ts
@@ -1,45 +1,67 @@
-// Type definitions for favicons 5.3
+// Type definitions for favicons 5.5
 // Project: https://github.com/itgalaxy/favicons
-// Definitions by: Mohsen Azimi <https://github.com/mohsen1>, Nikk Radetskiy <https://github.com/metsawyr>
+// Definitions by: Mohsen Azimi <https://github.com/mohsen1>
+//                 Nikk Radetskiy <https://github.com/metsawyr>
+//                 Artur Androsovych <https://github.com/arturovt>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.1
 
 /// <reference types="node" />
 
-import { Duplex } from "stream";
+import { Duplex } from 'stream';
 
 declare namespace favicons {
+    interface IconOptions {
+        offset?: number;
+        background?: boolean | string;
+        mask?: boolean;
+        overlayGlow?: boolean;
+        ovelayShadow?: boolean;
+    }
+
     interface Configuration {
-        /** Path for overriding default icons path @default "/" */
+        /** Path for overriding default icons path @default '/' */
         path: string;
         /** Your application's name @default null */
         appName: string | null;
+        /** Your application's short_name. If not set, `appName` will be used @default null */
+        appShortName: string | null;
         /** Your application's description @default null */
         appDescription: string | null;
         /** Your (or your developer's) name @default null */
         developerName: string | null;
         /** Your (or your developer's) URL @default null */
         developerURL: string | null;
-        /** Primary text direction for name, short_name, and description @default "auto" */
+        /** Primary text direction for name, short_name, and description @default 'auto' */
         dir: string;
-        /** Primary language for name and short_name @default "en-US */
+        /** Primary language for name and short_name @default 'en-US' */
         lang: string;
-        /** Background colour for flattened icons @default "#fff" */
+        /** Background colour for flattened icons @default '#fff' */
         background: string;
-        /** Theme color user for example in Android's task switcher @default "#fff" */
+        /** Theme color user for example in Android's task switcher @default '#fff' */
         theme_color: string;
-        /** Preferred display mode: "fullscreen", "standalone", "minimal-ui" or "browser" @default "standalone" */
-        display: "fullscreen" | "standalone" | "minimal-ui" | "browser";
-        /** Default orientation: "any", "natural", "portrait" or "landscape" @default "any" */
-        orientation: "any" | "natural" | "portrait" | "landscape";
-        /** Start URL when launching the application from a device @default "/?homescreen=1" */
+        /** Style for Apple status bar @default 'black-translucent' */
+        appleStatusBarStyle: 'black-translucent' | 'default' | 'black';
+        /** Preferred display mode: 'fullscreen', 'standalone', 'minimal-ui' or 'browser' @default 'standalone' */
+        display: 'fullscreen' | 'standalone' | 'minimal-ui' | 'browser';
+        /** Default orientation: 'any', 'natural', 'portrait' or 'landscape' @default 'any' */
+        orientation: 'any' | 'natural' | 'portrait' | 'landscape';
+        /** Set of URLs that the browser considers within your app @default null */
+        scope: string;
+        /** Start URL when launching the application from a device @default '/?homescreen=1' */
         start_url: string;
-        /** Your application's version string @default "1.0" */
+        /** Your application's version string @default '1.0' */
         version: string;
         /** Print logs to console? @default false */
         logging: boolean;
+        /** Determines whether to allow piping html as a file @default false */
+        pipeHTML: boolean;
         /** Use nearest neighbor resampling to preserve hard edges on pixel art @default false */
         pixel_art: boolean;
+        /** Browsers don't send cookies when fetching a manifest, enable this to fix that @default false */
+        loadManifestWithCredentials: boolean;
+        /** Determines whether to set relative paths in manifests @default false */
+        manifestRelativePaths: boolean;
         /**
          * Platform Options:
          * - offset - offset in percentage
@@ -47,24 +69,27 @@ declare namespace favicons {
          *   * false - use default
          *   * true - force use default, e.g. set background for Android icons
          *   * color - set background for the specified icons
+         * - mask - apply mask in order to create circle icon (applied by default for firefox)
+         * - overlayGlow - apply glow effect after mask has been applied (applied by default for firefox)
+         * - overlayShadow - apply drop shadow after mask has been applied
          */
         icons: Partial<{
-            /* Create Android homescreen icon.  */
-            android: boolean | { offset: string; background: string };
-            /* Create Apple touch icons.  */
-            appleIcon: boolean | { offset: string; background: string };
-            /* Create Apple startup images.  */
-            appleStartup: boolean | { offset: string; background: string };
-            /* Create Opera Coast icon.  */
-            coast: boolean | { offset: string; background: string };
-            /* Create regular favicons.  */
-            favicons: boolean;
-            /* Create Firefox OS icons.  */
-            firefox: boolean | { offset: string; background: string };
-            /* Create Windows 8 tile icons.   */
-            windows: boolean | { background: string };
+            /* Create Android homescreen icon. */
+            android: boolean | IconOptions;
+            /* Create Apple touch icons. */
+            appleIcon: boolean | IconOptions;
+            /* Create Apple startup images. */
+            appleStartup: boolean | IconOptions;
+            /* Create Opera Coast icon. */
+            coast: boolean | IconOptions;
+            /* Create regular favicons. */
+            favicons: boolean | IconOptions;
+            /* Create Firefox OS icons. */
+            firefox: boolean | IconOptions;
+            /* Create Windows 8 tile icons. */
+            windows: boolean | IconOptions;
             /* Create Yandex browser icon. */
-            yandex: boolean | { background: string };
+            yandex: boolean | IconOptions;
         }>;
     }