diff --git a/package-lock.json b/package-lock.json
index 78f283b..06eb53e 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -2799,85 +1978,21 @@
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@@ -2885,9 +2000,9 @@
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diff --git a/package.json b/package.json
index ea49605..44481c6 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
 	},
 	"dependencies": {},
 	"devDependencies": {
-		"grunt": "^1.3.0",
+		"grunt": "^1.5.3",
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 		"grunt-contrib-jshint": "^1.1.0",
 		"grunt-contrib-uglify-es": "github:gruntjs/grunt-contrib-uglify#harmony",