diff --git a/package.json b/package.json
index 01c57a3..a8a8ca1 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "1.2.7",
   "main": "dist/dist.css",
   "devDependencies": {
-    "grunt": "^1.0.1",
+    "grunt": "^1.5.3",
     "grunt-contrib-watch": "^1.0.0",
     "grunt-newer": "^1.2.0",
     "grunt-contrib-sass": "^1.0.0"
diff --git a/yarn.lock b/yarn.lock
index c5b7461..e02b377 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -452,10 +452,10 @@ grunt-newer@^1.2.0:
     async "^1.5.2"
     rimraf "^2.5.2"
 
-grunt@^1.0.1:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/grunt/-/grunt-1.5.2.tgz#46b014e28d17c85baac19d5e891bb3f04923c098"
-  integrity sha512-XCtfaIu72OyDqK24MjWiGC9SwlkuhkS1mrULr1xzuJ2XqAFhP3ZAchZGHJeSCY6mkaOXU4F7SbmmCF7xIVoC9w==
+grunt@^1.5.3:
+  version "1.5.3"
+  resolved "https://registry.yarnpkg.com/grunt/-/grunt-1.5.3.tgz#3214101d11257b7e83cf2b38ea173b824deab76a"
+  integrity sha512-mKwmo4X2d8/4c/BmcOETHek675uOqw0RuA/zy12jaspWqvTp4+ZeQF1W+OTpcbncnaBsfbQJ6l0l4j+Sn/GmaQ==
   dependencies:
     dateformat "~3.0.3"
     eventemitter2 "~0.4.13"