diff --git a/package-lock.json b/package-lock.json
index ed5fdb5d..94f448a5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -93,9 +93,9 @@
 			"dev": true
 		},
 		"async": {
-			"version": "3.2.1",
-			"resolved": "https://registry.npmjs.org/async/-/async-3.2.1.tgz",
-			"integrity": "sha512-XdD5lRO/87udXCMC9meWdYiR+Nq6ZjUfXidViUZGu2F1MO4T3XwZ1et0hb2++BgLfhyJwy44BGB/yx80ABx8hg==",
+			"version": "3.2.3",
+			"resolved": "https://registry.npmjs.org/async/-/async-3.2.3.tgz",
+			"integrity": "sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g==",
 			"dev": true
 		},
 		"balanced-match": {
@@ -474,9 +474,9 @@
 			}
 		},
 		"grunt": {
-			"version": "1.4.1",
-			"resolved": "https://registry.npmjs.org/grunt/-/grunt-1.4.1.tgz",
-			"integrity": "sha512-ZXIYXTsAVrA7sM+jZxjQdrBOAg7DyMUplOMhTaspMRExei+fD0BTwdWXnn0W5SXqhb/Q/nlkzXclSi3IH55PIA==",
+			"version": "1.5.2",
+			"resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.2.tgz",
+			"integrity": "sha512-XCtfaIu72OyDqK24MjWiGC9SwlkuhkS1mrULr1xzuJ2XqAFhP3ZAchZGHJeSCY6mkaOXU4F7SbmmCF7xIVoC9w==",
 			"dev": true,
 			"requires": {
 				"dateformat": "~3.0.3",
@@ -484,7 +484,7 @@
 				"exit": "~0.1.2",
 				"findup-sync": "~0.3.0",
 				"glob": "~7.1.6",
-				"grunt-cli": "~1.4.2",
+				"grunt-cli": "~1.4.3",
 				"grunt-known-options": "~2.0.0",
 				"grunt-legacy-log": "~3.0.0",
 				"grunt-legacy-util": "~2.0.1",
@@ -1540,12 +1540,12 @@
 			"dev": true
 		},
 		"underscore.string": {
-			"version": "3.3.5",
-			"resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.5.tgz",
-			"integrity": "sha512-g+dpmgn+XBneLmXXo+sGlW5xQEt4ErkS3mgeN2GFbremYeMBSJKr9Wf2KJplQVaiPY/f7FN6atosWYNm9ovrYg==",
+			"version": "3.3.6",
+			"resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.6.tgz",
+			"integrity": "sha512-VoC83HWXmCrF6rgkyxS9GHv8W9Q5nhMKho+OadDJGzL2oDYbYEppBaCMH6pFlwLeqj2QS+hhkw2kpXkSdD1JxQ==",
 			"dev": true,
 			"requires": {
-				"sprintf-js": "^1.0.3",
+				"sprintf-js": "^1.1.1",
 				"util-deprecate": "^1.0.2"
 			}
 		},
diff --git a/package.json b/package.json
index 7f036c27..968890d1 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
   "author": "georgestephanis",
   "license": "GPL-2.0+",
   "devDependencies": {
-    "grunt": "^1.4.1",
+    "grunt": "^1.5.2",
     "grunt-cli": "^1.4.3",
     "grunt-contrib-clean": "^2.0.0",
     "grunt-contrib-copy": "^1.0.0",