diff --git a/Gruntfile.js b/Gruntfile.js
index a90a0974..0cd48304 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -52,6 +52,11 @@ module.exports = function(grunt) {
             "src/viewport.js"
         ];
 
+    // ----------
+    grunt.event.once('git-describe', function (rev) {
+        grunt.config.set('gitInfo', rev);
+    });
+
     // ----------
     // Project configuration.
     grunt.initConfig({
@@ -101,12 +106,8 @@ module.exports = function(grunt) {
         uglify: {
             options: {
                 preserveComments: "some",
-                sourceMap: function (filename) {
-                    return filename.replace(/\.js$/, '.js.map');
-                },
-                sourceMappingURL: function (filename) {
-                    return filename.replace(/\.js$/, '.js.map').replace('build/openseadragon/', '');
-                },
+                sourceMap: true,
+                sourceMapName: 'build/openseadragon/openseadragon.min.js.map'
             },
             openseadragon: {
                 src: [ distribution ],
@@ -161,11 +162,7 @@ module.exports = function(grunt) {
             afterconcat: [ distribution ]
         },
         "git-describe": {
-            build: {
-                options: {
-                    prop: "gitInfo"
-                }
-            }
+            build: {}
         }
     });
 
diff --git a/package.json b/package.json
index aa123561..70ce5a73 100644
--- a/package.json
+++ b/package.json
@@ -3,17 +3,17 @@
   "version": "1.1.1",
   "description": "Provides a smooth, zoomable user interface for HTML/Javascript.",
   "devDependencies": {
-    "grunt": "~0.4.1",
-    "grunt-contrib-compress": "~0.5.2",
-    "grunt-contrib-concat": "~0.3.0",
-    "grunt-contrib-jshint": "~0.7.2",
-    "grunt-contrib-uglify": "~0.2.7",
-    "grunt-contrib-qunit": "~0.3.0",
-    "grunt-contrib-connect": "~0.5.0",
-    "grunt-contrib-watch": "~0.5.3",
-    "grunt-contrib-clean": "~0.5.0",
-    "grunt-git-describe": "~2.0.0",
-    "grunt-text-replace": "~0.3.9"
+    "grunt": "^0.4.5",
+    "grunt-contrib-clean": "^0.5.0",
+    "grunt-text-replace": "^0.3.11",
+    "grunt-contrib-concat": "^0.4.0",
+    "grunt-git-describe": "^2.3.2",
+    "grunt-contrib-uglify": "^0.4.0",
+    "grunt-contrib-watch": "^0.6.1",
+    "grunt-contrib-qunit": "^0.5.1",
+    "grunt-contrib-jshint": "^0.10.0",
+    "grunt-contrib-compress": "^0.9.1",
+    "grunt-contrib-connect": "^0.7.1"
   },
   "scripts": {
     "test": "grunt test"
diff --git a/src/openseadragon.js b/src/openseadragon.js
index 14ddd3d5..0c167934 100644
--- a/src/openseadragon.js
+++ b/src/openseadragon.js
@@ -656,14 +656,12 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
      * @property {Number} revision - The revision number.
      * @since 1.0.0
      */
-    /* jshint ignore:start */
     $.version = {
         versionStr: '<%= osdVersion.versionStr %>',
-        major: <%= osdVersion.major %>,
-        minor: <%= osdVersion.minor %>,
-        revision: <%= osdVersion.revision %>
+        major: parseInt('<%= osdVersion.major %>', 10),
+        minor: parseInt('<%= osdVersion.minor %>', 10),
+        revision: parseInt('<%= osdVersion.revision %>', 10)
     };
-    /* jshint ignore:end */
 
 
     /**