diff --git a/js/detect.js b/js/detect.js
index 5817cdaba36c00ccf03cf4eae9faec8aa448853a_anMvZGV0ZWN0Lmpz..1937f655dd50f992dd147e79f3463528c4fd1378_anMvZGV0ZWN0Lmpz 100644
--- a/js/detect.js
+++ b/js/detect.js
@@ -2,6 +2,6 @@
 $(document).ready(function() {
     var download_url, download_text;
     if (navigator.platform.indexOf('Linux') != -1) {
-        download_url = 'download/pypy-1.3-linux.tar.bz2';
+        download_url = 'download/pypy-1.4-linux.tar.bz2';
         download_text = 'Download linux x86 bin';
     } else if (navigator.platform.indexOf('Win') != -1) {
@@ -6,5 +6,5 @@
         download_text = 'Download linux x86 bin';
     } else if (navigator.platform.indexOf('Win') != -1) {
-        download_url = 'download/pypy-1.3-win32.zip';
+        download_url = 'download/pypy-1.4-win32.zip';
         download_text = 'Download Windows x86 bin';
     } else if (navigator.platform.indexOf('Mac') != 1) {
@@ -9,6 +9,6 @@
         download_text = 'Download Windows x86 bin';
     } else if (navigator.platform.indexOf('Mac') != 1) {
-        download_url = 'download/pypy-1.3-osx.tar.bz2';
+        download_url = 'download/pypy-1.4-osx.tar.bz2';
         downloat_text = 'Download Mac OS X 10.6 bin';
     } else {
         download_url = "download.html";