diff --git a/www/package-lock.json b/www/package-lock.json
index 37d5434..f7a3460 100644
--- a/www/package-lock.json
+++ b/www/package-lock.json
@@ -722,28 +722,6 @@
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@@ -1028,12 +1006,12 @@
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-      "resolved": "https://registry.npmjs.org/copy-webpack-plugin/-/copy-webpack-plugin-5.0.3.tgz",
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+      "resolved": "https://registry.npmjs.org/copy-webpack-plugin/-/copy-webpack-plugin-5.1.1.tgz",
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@@ -1041,10 +1019,50 @@
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-        "serialize-javascript": "^1.7.0",
+        "serialize-javascript": "^2.1.2",
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+          "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.3.tgz",
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+          "dev": true,
+          "requires": {
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+            "chownr": "^1.1.1",
+            "figgy-pudding": "^3.5.1",
+            "glob": "^7.1.4",
+            "graceful-fs": "^4.1.15",
+            "infer-owner": "^1.0.3",
+            "lru-cache": "^5.1.1",
+            "mississippi": "^3.0.0",
+            "mkdirp": "^0.5.1",
+            "move-concurrently": "^1.0.1",
+            "promise-inflight": "^1.0.1",
+            "rimraf": "^2.6.3",
+            "ssri": "^6.0.1",
+            "unique-filename": "^1.1.1",
+            "y18n": "^4.0.0"
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+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.2.2.tgz",
+          "integrity": "sha512-WGR+xHecKTr7EbUEhyLSh5Dube9JtdiG78ufaeLxTgpudf/20KqyMioIUZJAezlTIi6evxuoUs9YXc11cU+yzQ==",
+          "dev": true,
+          "requires": {
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+        "serialize-javascript": {
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+          "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-2.1.2.tgz",
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+        }
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@@ -1888,8 +1906,7 @@
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-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -1910,14 +1927,12 @@
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-          "dev": true,
-          "optional": true
+          "dev": true
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           "dev": true,
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@@ -1932,20 +1947,17 @@
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           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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           "version": "0.0.1",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -2062,8 +2074,7 @@
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           "version": "2.0.3",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -2075,7 +2086,6 @@
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@@ -2090,7 +2100,6 @@
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@@ -2098,14 +2107,12 @@
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           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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           "bundled": true,
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-          "optional": true,
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@@ -2124,7 +2131,6 @@
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@@ -2205,8 +2211,7 @@
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           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -2218,7 +2223,6 @@
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-          "optional": true,
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@@ -2304,8 +2308,7 @@
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           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -2341,7 +2344,6 @@
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@@ -2361,7 +2363,6 @@
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           "dev": true,
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@@ -2405,14 +2406,12 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
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@@ -2742,6 +2741,12 @@
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       "dev": true
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+    "infer-owner": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/infer-owner/-/infer-owner-1.0.4.tgz",
+      "integrity": "sha512-IClj+Xz94+d7irH5qRyfJonOdfTzuDaifE6ZPWfx0N0+/ATZCbuTPq2prFl526urkQd90WyUKIh1DfBQ2hMz9A==",
+      "dev": true
+    },
     "inflight": {
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       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -4206,12 +4211,6 @@
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-    "serialize-javascript": {
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-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-1.7.0.tgz",
-      "integrity": "sha512-ke8UG8ulpFOxO8f8gRYabHQe/ZntKlcig2Mp+8+URDP1D8vJZ0KUt7LYo07q25Z/+JVSgpr/cui9PIp5H6/+nA==",
-      "dev": true
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       "resolved": "https://registry.npmjs.org/serve-index/-/serve-index-1.9.1.tgz",
@@ -4755,48 +4754,78 @@
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       "dev": true
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-    "terser": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.0.2.tgz",
-      "integrity": "sha512-IWLuJqTvx97KP3uTYkFVn93cXO+EtlzJu8TdJylq+H0VBDlPMIfQA9MBS5Vc5t3xTEUG1q0hIfHMpAP2R+gWTw==",
-      "dev": true,
-      "requires": {
-        "commander": "^2.19.0",
-        "source-map": "~0.6.1",
-        "source-map-support": "~0.5.10"
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-      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.3.0.tgz",
-      "integrity": "sha512-W2YWmxPjjkUcOWa4pBEv4OP4er1aeQJlSo2UhtCFQCuRXEHjOFscO8VyWHj9JLlA0RzQb8Y2/Ta78XZvT54uGg==",
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.4.3.tgz",
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       "dev": true,
       "requires": {
-        "cacache": "^11.3.2",
-        "find-cache-dir": "^2.0.0",
+        "cacache": "^12.0.2",
+        "find-cache-dir": "^2.1.0",
         "is-wsl": "^1.1.0",
-        "loader-utils": "^1.2.3",
         "schema-utils": "^1.0.0",
-        "serialize-javascript": "^1.7.0",
+        "serialize-javascript": "^2.1.2",
         "source-map": "^0.6.1",
-        "terser": "^4.0.0",
-        "webpack-sources": "^1.3.0",
+        "terser": "^4.1.2",
+        "webpack-sources": "^1.4.0",
         "worker-farm": "^1.7.0"
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+          "dev": true,
+          "requires": {
+            "bluebird": "^3.5.5",
+            "chownr": "^1.1.1",
+            "figgy-pudding": "^3.5.1",
+            "glob": "^7.1.4",
+            "graceful-fs": "^4.1.15",
+            "infer-owner": "^1.0.3",
+            "lru-cache": "^5.1.1",
+            "mississippi": "^3.0.0",
+            "mkdirp": "^0.5.1",
+            "move-concurrently": "^1.0.1",
+            "promise-inflight": "^1.0.1",
+            "rimraf": "^2.6.3",
+            "ssri": "^6.0.1",
+            "unique-filename": "^1.1.1",
+            "y18n": "^4.0.0"
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+          "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-2.1.2.tgz",
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+          "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.3.tgz",
+          "integrity": "sha512-Lw+ieAXmY69d09IIc/yqeBqXpEQIpDGZqT34ui1QWXIUpR2RjbqEkT8X7Lgex19hslSqcWM5iMN2kM11eMsESQ==",
+          "dev": true,
+          "requires": {
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+            "source-map": "~0.6.1",
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+          "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.4.3.tgz",
+          "integrity": "sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==",
+          "dev": true,
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+          }
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diff --git a/www/package.json b/www/package.json
index a277d35..1e295de 100644
--- a/www/package.json
+++ b/www/package.json
@@ -19,7 +19,7 @@
   },
   "homepage": "https://github.com/rustwasm/create-wasm-app#readme",
   "devDependencies": {
-    "copy-webpack-plugin": "^5.0.3",
+    "copy-webpack-plugin": "^5.1.1",
     "webpack": "^4.35.2",
     "webpack-cli": "^3.3.5",
     "webpack-dev-server": "^3.7.2"