diff --git a/package-lock.json b/package-lock.json
index b0cfa27f..f777d847 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,7 @@
         "@wordpress/element": "^4.0.4",
         "@wordpress/scripts": "^19.2.2",
         "autoprefixer": "~7.2.3",
-        "grunt": "^1.0.3",
+        "grunt": "^1.5.2",
         "grunt-checktextdomain": "^1.0.1",
         "grunt-contrib-compress": "^1.4.3",
         "grunt-contrib-concat": "~1.0.1",
@@ -12636,16 +12636,16 @@
       "optional": 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": "1.5.2",
+      "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.2.tgz",
+      "integrity": "sha512-XCtfaIu72OyDqK24MjWiGC9SwlkuhkS1mrULr1xzuJ2XqAFhP3ZAchZGHJeSCY6mkaOXU4F7SbmmCF7xIVoC9w==",
       "dependencies": {
         "dateformat": "~3.0.3",
         "eventemitter2": "~0.4.13",
         "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",
@@ -22372,7 +22372,6 @@
     },
     "node_modules/npm/node_modules/lodash._baseindexof": {
       "version": "3.1.0",
-      "extraneous": true,
       "inBundle": true,
       "license": "MIT"
     },
@@ -22387,19 +22386,16 @@
     },
     "node_modules/npm/node_modules/lodash._bindcallback": {
       "version": "3.0.1",
-      "extraneous": true,
       "inBundle": true,
       "license": "MIT"
     },
     "node_modules/npm/node_modules/lodash._cacheindexof": {
       "version": "3.0.2",
-      "extraneous": true,
       "inBundle": true,
       "license": "MIT"
     },
     "node_modules/npm/node_modules/lodash._createcache": {
       "version": "3.1.2",
-      "extraneous": true,
       "inBundle": true,
       "license": "MIT",
       "dependencies": {
@@ -22413,7 +22409,6 @@
     },
     "node_modules/npm/node_modules/lodash._getnative": {
       "version": "3.9.1",
-      "extraneous": true,
       "inBundle": true,
       "license": "MIT"
     },
@@ -22429,7 +22424,6 @@
     },
     "node_modules/npm/node_modules/lodash.restparam": {
       "version": "3.6.1",
-      "extraneous": true,
       "inBundle": true,
       "license": "MIT"
     },
@@ -43364,16 +43358,16 @@
       "optional": 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": "1.5.2",
+      "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.2.tgz",
+      "integrity": "sha512-XCtfaIu72OyDqK24MjWiGC9SwlkuhkS1mrULr1xzuJ2XqAFhP3ZAchZGHJeSCY6mkaOXU4F7SbmmCF7xIVoC9w==",
       "requires": {
         "dateformat": "~3.0.3",
         "eventemitter2": "~0.4.13",
         "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",
@@ -50482,8 +50476,7 @@
         },
         "lodash._baseindexof": {
           "version": "3.1.0",
-          "bundled": true,
-          "extraneous": true
+          "bundled": true
         },
         "lodash._baseuniq": {
           "version": "4.6.0",
@@ -50495,18 +50488,15 @@
         },
         "lodash._bindcallback": {
           "version": "3.0.1",
-          "bundled": true,
-          "extraneous": true
+          "bundled": true
         },
         "lodash._cacheindexof": {
           "version": "3.0.2",
-          "bundled": true,
-          "extraneous": true
+          "bundled": true
         },
         "lodash._createcache": {
           "version": "3.1.2",
           "bundled": true,
-          "extraneous": true,
           "requires": {
             "lodash._getnative": "^3.0.0"
           }
@@ -50517,8 +50507,7 @@
         },
         "lodash._getnative": {
           "version": "3.9.1",
-          "bundled": true,
-          "extraneous": true
+          "bundled": true
         },
         "lodash._root": {
           "version": "3.0.1",
@@ -50530,8 +50519,7 @@
         },
         "lodash.restparam": {
           "version": "3.6.1",
-          "bundled": true,
-          "extraneous": true
+          "bundled": true
         },
         "lodash.union": {
           "version": "4.6.0",
diff --git a/package.json b/package.json
index e94f829a..8fcda8c8 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "@wordpress/element": "^4.0.4",
     "@wordpress/scripts": "^19.2.2",
     "autoprefixer": "~7.2.3",
-    "grunt": "^1.0.3",
+    "grunt": "^1.5.2",
     "grunt-checktextdomain": "^1.0.1",
     "grunt-contrib-compress": "^1.4.3",
     "grunt-contrib-concat": "~1.0.1",