diff --git a/package-lock.json b/package-lock.json
index b2547d4..be1c6d5 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -691,6 +684,40 @@
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@@ -2090,12 +2247,24 @@
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@@ -2171,38 +2340,6 @@
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@@ -2321,6 +2440,12 @@
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@@ -2400,6 +2525,15 @@
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+    "to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
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+      "dev": true,
+      "requires": {
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@@ -2410,12 +2544,6 @@
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@@ -2449,14 +2577,28 @@
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+      "integrity": "sha1-5z3T17DXxe2G+6xrCufYxqadUPo=",
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+      "version": "3.3.6",
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       "dev": true,
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-        "sprintf-js": "^1.0.3",
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+        }
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@@ -2486,14 +2628,13 @@
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+    "v8flags": {
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diff --git a/package.json b/package.json
index cc68072..827e711 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "author": "David Smith",
   "devDependencies": {
     "@wordpress/env": "^1.0.1",
-    "grunt": "^1.1.0",
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