diff --git a/package-lock.json b/package-lock.json
index e40f940..1d52c22 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "grunt-php-set-constant": "0.0.15"
       },
       "devDependencies": {
-        "grunt": "^1.4.0",
+        "grunt": "^1.5.3",
         "grunt-contrib-concat": "^0.5.1",
         "grunt-contrib-less": "^2.0.0",
         "grunt-contrib-uglify": "^4.0.0",
@@ -746,9 +746,9 @@
       "optional": true
     },
     "node_modules/grunt": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.2.tgz",
-      "integrity": "sha512-XCtfaIu72OyDqK24MjWiGC9SwlkuhkS1mrULr1xzuJ2XqAFhP3ZAchZGHJeSCY6mkaOXU4F7SbmmCF7xIVoC9w==",
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.3.tgz",
+      "integrity": "sha512-mKwmo4X2d8/4c/BmcOETHek675uOqw0RuA/zy12jaspWqvTp4+ZeQF1W+OTpcbncnaBsfbQJ6l0l4j+Sn/GmaQ==",
       "dev": true,
       "dependencies": {
         "dateformat": "~3.0.3",
@@ -3096,9 +3096,9 @@
       "optional": true
     },
     "grunt": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.2.tgz",
-      "integrity": "sha512-XCtfaIu72OyDqK24MjWiGC9SwlkuhkS1mrULr1xzuJ2XqAFhP3ZAchZGHJeSCY6mkaOXU4F7SbmmCF7xIVoC9w==",
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.3.tgz",
+      "integrity": "sha512-mKwmo4X2d8/4c/BmcOETHek675uOqw0RuA/zy12jaspWqvTp4+ZeQF1W+OTpcbncnaBsfbQJ6l0l4j+Sn/GmaQ==",
       "dev": true,
       "requires": {
         "dateformat": "~3.0.3",
diff --git a/package.json b/package.json
index adda6b6..7c86edd 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "author": "OpenLab Team",
   "license": "GPLv2",
   "devDependencies": {
-    "grunt": "^1.4.0",
+    "grunt": "^1.5.3",
     "grunt-contrib-concat": "^0.5.1",
     "grunt-contrib-less": "^2.0.0",
     "grunt-contrib-uglify": "^4.0.0",