diff --git a/docs/package-lock.json b/docs/package-lock.json
index 1337ea4b9..fcc06b830 100644
--- a/docs/package-lock.json
+++ b/docs/package-lock.json
@@ -13,7 +13,7 @@
         "chalk": "^1.1.3",
         "cheerio": "^1.0.0-rc.10",
         "es6-arrow-function": "^0.6.6",
-        "grunt": "^1.5.3",
+        "grunt": "^1.6.1",
         "grunt-concurrent": "^3.0.0",
         "grunt-contrib-clean": "^2.0.1",
         "grunt-contrib-concat": "^2.1.0",
diff --git a/docs/package.json b/docs/package.json
index 5afd99912..78da1fa30 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -11,7 +11,7 @@
     "chalk": "^1.1.3",
     "cheerio": "^1.0.0-rc.10",
     "es6-arrow-function": "^0.6.6",
-    "grunt": "^1.5.3",
+    "grunt": "^1.6.1",
     "grunt-concurrent": "^3.0.0",
     "grunt-contrib-clean": "^2.0.1",
     "grunt-contrib-concat": "^2.1.0",
diff --git a/package-lock.json b/package-lock.json
index 729b5c047..a83bdbe42 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,7 +30,7 @@
         "eslint-plugin-node": "^11.1.0",
         "eslint-plugin-promise": "^5.2.0",
         "eslint-plugin-standard": "^5.0.0",
-        "grunt": "^1.5.2",
+        "grunt": "^1.6.1",
         "grunt-browserify": "^6.0.0",
         "grunt-concurrent": "^3.0.0",
         "grunt-contrib-clean": "^2.0.1",
@@ -7238,6 +7238,7 @@
       "version": "7.1.7",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.7.tgz",
       "integrity": "sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==",
+      "deprecated": "Glob versions prior to v9 are no longer supported",
       "dev": true,
       "dependencies": {
         "fs.realpath": "^1.0.0",
diff --git a/package.json b/package.json
index 1457682a2..1a05ece7d 100644
--- a/package.json
+++ b/package.json
@@ -92,7 +92,7 @@
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^5.2.0",
     "eslint-plugin-standard": "^5.0.0",
-    "grunt": "^1.5.2",
+    "grunt": "^1.6.1",
     "grunt-browserify": "^6.0.0",
     "grunt-concurrent": "^3.0.0",
     "grunt-contrib-clean": "^2.0.1",