diff --git a/bower.json b/bower.json
index 28760b357..b0d21b70c 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.4.55",
+  "version": "1.4.57",
   "main": [
     "build/pdf.js",
     "build/pdf.worker.js"
diff --git a/build/pdf.combined.js b/build/pdf.combined.js
index 5b4375887..edcd8f5ab 100644
--- a/build/pdf.combined.js
+++ b/build/pdf.combined.js
@@ -28,8 +28,8 @@ factory((root.pdfjsDistBuildPdfCombined = {}));
   // Use strict in our context only - users might not want it
   'use strict';
 
-var pdfjsVersion = '1.4.55';
-var pdfjsBuild = 'acf74d4';
+var pdfjsVersion = '1.4.57';
+var pdfjsBuild = '72c05af';
 
   var pdfjsFilePath =
     typeof document !== 'undefined' && document.currentScript ?
@@ -34632,7 +34632,7 @@ var PDFWorker = (function PDFWorkerClosure() {
 
     _initialize: function PDFWorker_initialize() {
       // If worker support isn't disabled explicit and the browser has worker
-      // support, create a new web worker and test if it/the browser fullfills
+      // support, create a new web worker and test if it/the browser fulfills
       // all requirements to run parts of pdf.js in a web worker.
       // Right now, the requirement is, that an Uint8Array is still an
       // Uint8Array as it arrives on the worker. (Chrome added this with v.15.)
diff --git a/build/pdf.js b/build/pdf.js
index 36d59e63f..64d991081 100644
--- a/build/pdf.js
+++ b/build/pdf.js
@@ -28,8 +28,8 @@ factory((root.pdfjsDistBuildPdf = {}));
   // Use strict in our context only - users might not want it
   'use strict';
 
-var pdfjsVersion = '1.4.55';
-var pdfjsBuild = 'acf74d4';
+var pdfjsVersion = '1.4.57';
+var pdfjsBuild = '72c05af';
 
   var pdfjsFilePath =
     typeof document !== 'undefined' && document.currentScript ?
@@ -9508,7 +9508,7 @@ var PDFWorker = (function PDFWorkerClosure() {
 
     _initialize: function PDFWorker_initialize() {
       // If worker support isn't disabled explicit and the browser has worker
-      // support, create a new web worker and test if it/the browser fullfills
+      // support, create a new web worker and test if it/the browser fulfills
       // all requirements to run parts of pdf.js in a web worker.
       // Right now, the requirement is, that an Uint8Array is still an
       // Uint8Array as it arrives on the worker. (Chrome added this with v.15.)
diff --git a/build/pdf.worker.js b/build/pdf.worker.js
index 75c9e90ea..004ce1412 100644
--- a/build/pdf.worker.js
+++ b/build/pdf.worker.js
@@ -28,8 +28,8 @@ factory((root.pdfjsDistBuildPdfWorker = {}));
   // Use strict in our context only - users might not want it
   'use strict';
 
-var pdfjsVersion = '1.4.55';
-var pdfjsBuild = 'acf74d4';
+var pdfjsVersion = '1.4.57';
+var pdfjsBuild = '72c05af';
 
   var pdfjsFilePath =
     typeof document !== 'undefined' && document.currentScript ?
diff --git a/package.json b/package.json
index fd5a8bbc2..5a9f1e1c8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.4.55",
+  "version": "1.4.57",
   "main": "build/pdf.js",
   "description": "Generic build of Mozilla's PDF.js library.",
   "keywords": [