diff --git a/package-lock.json b/package-lock.json
index b02acd8..a1aa977 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -54,7 +54,7 @@
                 "@types/request": "^2.48.8",
                 "bower": "^1.8.13",
                 "escape-string-regexp": "^5.0.0",
-                "grunt": "^1.4.1",
+                "grunt": "^1.5.3",
                 "grunt-autoprefixer": "^3.0.4",
                 "grunt-cli": "^1.4.3",
                 "grunt-concurrent": "^3.0.0",
@@ -6774,9 +6774,9 @@
             "dev": true
         },
         "node_modules/grunt": {
-            "version": "1.4.1",
-            "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.4.1.tgz",
-            "integrity": "sha512-ZXIYXTsAVrA7sM+jZxjQdrBOAg7DyMUplOMhTaspMRExei+fD0BTwdWXnn0W5SXqhb/Q/nlkzXclSi3IH55PIA==",
+            "version": "1.5.3",
+            "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",
@@ -6784,7 +6784,7 @@
                 "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",
@@ -23855,9 +23855,9 @@
             "dev": true
         },
         "grunt": {
-            "version": "1.4.1",
-            "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.4.1.tgz",
-            "integrity": "sha512-ZXIYXTsAVrA7sM+jZxjQdrBOAg7DyMUplOMhTaspMRExei+fD0BTwdWXnn0W5SXqhb/Q/nlkzXclSi3IH55PIA==",
+            "version": "1.5.3",
+            "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",
@@ -23865,7 +23865,7 @@
                 "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",
diff --git a/package.json b/package.json
index f462c77..2684c02 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
         "@types/request": "^2.48.8",
         "bower": "^1.8.13",
         "escape-string-regexp": "^5.0.0",
-        "grunt": "^1.4.1",
+        "grunt": "^1.5.3",
         "grunt-autoprefixer": "^3.0.4",
         "grunt-cli": "^1.4.3",
         "grunt-concurrent": "^3.0.0",