diff --git a/package-lock.json b/package-lock.json
index dcaf317..b35e4ef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -98,7 +98,7 @@
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       "resolved": "https://registry.npmjs.org/cli/-/cli-1.0.1.tgz",
-      "integrity": "sha1-IoF1NPJL+klQw01TLUjsvGIbjBQ=",
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       "dev": true,
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@@ -135,22 +135,22 @@
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       "resolved": "https://registry.npmjs.org/console-browserify/-/console-browserify-1.1.0.tgz",
-      "integrity": "sha1-8CQcRXMKn8YyOyBtvzjtx0HQuxA=",
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       "dev": true,
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       }
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-      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
-      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
+      "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
       "dev": true
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-      "integrity": "sha1-6vQ5/U1ISK105cx9vvIAZyueNFs=",
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@@ -176,9 +176,9 @@
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-          "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-2.2.0.tgz",
-          "integrity": "sha512-DtBMo82pv1dFtUmHyr48beiuq792Sxohr+8Hm9zoxklYPfa6n0Z3Byjj2IV7bmr2IyqClnqEQhfgHJJ5QF0R5A==",
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+          "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-2.3.0.tgz",
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@@ -198,7 +198,7 @@
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       "resolved": "https://registry.npmjs.org/domhandler/-/domhandler-2.3.0.tgz",
-      "integrity": "sha1-LeWaCCLVAn+r/28DLCsloqir5zg=",
+      "integrity": "sha512-q9bUwjfp7Eif8jWxxxPSykdRZAb6GkguBGSgvvCrhI9wB71W2K/Kvv4E61CF/mcCfnVJDeDWx/Vb/uAqbDj6UQ==",
       "dev": true,
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@@ -207,7 +207,7 @@
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-      "integrity": "sha1-3NhIiib1Y9YQeeSMn3t+Mjc2gs8=",
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       "dev": true,
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@@ -223,7 +223,7 @@
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-      "integrity": "sha1-sph6o4ITR/zeZCsk/fyeT7cSvyY=",
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       "dev": true
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@@ -449,14 +449,26 @@
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-      "resolved": "https://registry.npmjs.org/grunt-contrib-jshint/-/grunt-contrib-jshint-3.0.0.tgz",
-      "integrity": "sha512-o0V3HNK54+w2Lss/AP0LsAUCEmPDQIcgsDFvTy0sE8sdPXq/8vHdNdMEitK9Wcfoq7H6v02v6soiiwJ0wavT7A==",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/grunt-contrib-jshint/-/grunt-contrib-jshint-3.2.0.tgz",
+      "integrity": "sha512-pcXWCSZWfoMSvcV4BwH21TUtLtcX0Ms8IGuOPIcLeXK3fud9KclY7iqMKY94jFx8TxZzh028YYtpR+io8DiEaQ==",
       "dev": true,
       "requires": {
-        "chalk": "^4.1.0",
+        "chalk": "~4.1.2",
         "hooker": "^0.2.3",
-        "jshint": "~2.12.0"
+        "jshint": "~2.13.4"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "4.1.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
+          "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        }
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@@ -628,7 +640,7 @@
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       "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-3.8.3.tgz",
-      "integrity": "sha1-mWwosZFRaovoZQGn15dX5ccMEGg=",
+      "integrity": "sha512-hBxEg3CYXe+rPIua8ETe7tmG3XDn9B0edOE/e9wH2nLczxzgdu0m0aNHY+5wFZiviLWLdANPJTssa92dMcXQ5Q==",
       "dev": true,
       "requires": {
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@@ -751,7 +763,7 @@
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       "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
-      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
+      "integrity": "sha512-D2S+3GLxWH+uhrNEcoh/fnmYeP8E8/zHl644d/jdA0g2uyXvy3sb0qxotE+ne0LtccHknQzWwZEzhak7oJ0COQ==",
       "dev": true
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     "isexe": {
@@ -777,18 +789,17 @@
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-      "version": "2.12.0",
-      "resolved": "https://registry.npmjs.org/jshint/-/jshint-2.12.0.tgz",
-      "integrity": "sha512-TwuuaUDmra0JMkuqvqy+WGo2xGHSNjv1BA1nTIgtH2K5z1jHuAEeAgp7laaR+hLRmajRjcrM71+vByBDanCyYA==",
+      "version": "2.13.6",
+      "resolved": "https://registry.npmjs.org/jshint/-/jshint-2.13.6.tgz",
+      "integrity": "sha512-IVdB4G0NTTeQZrBoM8C5JFVLjV2KtZ9APgybDA1MK73xb09qFs0jCXyQLnCOp1cSZZZbvhq/6mfXHUTaDkffuQ==",
       "dev": true,
       "requires": {
         "cli": "~1.0.0",
         "console-browserify": "1.1.x",
         "exit": "0.1.x",
         "htmlparser2": "3.8.x",
-        "lodash": "~4.17.19",
+        "lodash": "~4.17.21",
         "minimatch": "~3.0.2",
-        "shelljs": "0.3.x",
         "strip-json-comments": "1.0.x"
       }
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@@ -1058,7 +1069,7 @@
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       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
-      "integrity": "sha1-fPTFTvZI44EwhMY23SB54WbAgdk=",
+      "integrity": "sha512-+MeVjFf4L44XUkhM1eYbD8fyEsxcV81pqMSR5gblfcLCHfZvbrqy4/qYHE+/R5HoBUT11WV5O08Cr1n3YXkWVQ==",
       "dev": true,
       "requires": {
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@@ -1112,12 +1123,6 @@
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       "dev": true
     },
-    "shelljs": {
-      "version": "0.3.0",
-      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.3.0.tgz",
-      "integrity": "sha1-NZbmMHp4FUT1kfN9phg2DzHbV7E=",
-      "dev": true
-    },
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       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.1.2.tgz",
@@ -1127,7 +1132,7 @@
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       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-      "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
+      "integrity": "sha512-ev2QzSzWPYmy9GuqfIVildA4OdcGLeFZQrq5ys6RtiuF+RQQiZWr8TZNyAcuVXyQRYfEO+MsoB/1BuQVhOJuoQ==",
       "dev": true
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     "strip-ansi": {
@@ -1142,7 +1147,7 @@
     "strip-json-comments": {
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       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-1.0.4.tgz",
-      "integrity": "sha1-HhX7ysl9Pumb8tc7TGVrCCu6+5E=",
+      "integrity": "sha512-AOPG8EBc5wAikaG1/7uFCNFJwnKOuQwFTpYBdTW6OvWHeZBQBrAA/amefHGrEiOnCPcLFZK6FUPtWVKpQVIRgg==",
       "dev": true
     },
     "supports-color": {
diff --git a/package.json b/package.json
index a85e7a8..5b6633b 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   "license": "MIT",
   "devDependencies": {
     "grunt": ">=1.5.3",
-    "grunt-contrib-jshint": "^3.0.0",
+    "grunt-contrib-jshint": "^3.2.0",
     "grunt-contrib-uglify": "^5.0.1"
   }
 }