diff --git a/package-lock.json b/package-lock.json
index de9352f..3ba7429 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3966,13 +3966,64 @@
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-      "resolved": "https://registry.npmjs.org/grunt-contrib-concat/-/grunt-contrib-concat-1.0.1.tgz",
-      "integrity": "sha1-YVCYYwhOhx1+ht5IwBUlntl3Rb0=",
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+      "resolved": "https://registry.npmjs.org/grunt-contrib-concat/-/grunt-contrib-concat-2.1.0.tgz",
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       "dev": true,
       "requires": {
-        "chalk": "^1.0.0",
+        "chalk": "^4.1.2",
         "source-map": "^0.5.3"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "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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+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
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+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
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+          "dev": true
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "requires": {
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+          }
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     "grunt-contrib-connect": {
diff --git a/package.json b/package.json
index 9301487..073c85c 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "grunt-babel": "^8.0.0",
     "grunt-complexity": "~1.1",
     "grunt-contrib-clean": "^2.0.0",
-    "grunt-contrib-concat": "~1.0.1",
+    "grunt-contrib-concat": "~2.1.0",
     "grunt-contrib-connect": "~3.0.0",
     "grunt-contrib-jshint": "~3.0.0",
     "grunt-contrib-qunit": "^5.0.1",