diff --git a/bower.json b/bower.json
index 7bdd19f27..ad661ee18 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.4.252",
+  "version": "1.4.255",
   "main": [
     "build/pdf.js",
     "build/pdf.worker.js"
diff --git a/build/pdf.combined.js b/build/pdf.combined.js
index 98bc13948..67abbe9a7 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 = '1.4.252';
-var pdfjsBuild = 'a093d75';
+var pdfjsVersion = '1.4.255';
+var pdfjsBuild = '0428fdf';
 
   var pdfjsFilePath =
     typeof document !== 'undefined' && document.currentScript ?
diff --git a/build/pdf.js b/build/pdf.js
index dcbe7488e..b1adb3bcc 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 = '1.4.252';
-var pdfjsBuild = 'a093d75';
+var pdfjsVersion = '1.4.255';
+var pdfjsBuild = '0428fdf';
 
   var pdfjsFilePath =
     typeof document !== 'undefined' && document.currentScript ?
diff --git a/build/pdf.worker.js b/build/pdf.worker.js
index 9142bc02e..d4de885e2 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 = '1.4.252';
-var pdfjsBuild = 'a093d75';
+var pdfjsVersion = '1.4.255';
+var pdfjsBuild = '0428fdf';
 
   var pdfjsFilePath =
     typeof document !== 'undefined' && document.currentScript ?
diff --git a/package.json b/package.json
index f3a3377d2..97c607aa0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.4.252",
+  "version": "1.4.255",
   "main": "build/pdf.js",
   "description": "Generic build of Mozilla's PDF.js library.",
   "keywords": [