diff --git a/package-lock.json b/package-lock.json
index 31a30236..2ea57493 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -790,9 +790,9 @@
       "dev": true
     },
     "@types/chai": {
-      "version": "4.1.7",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.1.7.tgz",
-      "integrity": "sha512-2Y8uPt0/jwjhQ6EiluT0XCri1Dbplr0ZxfFXUz+ye13gaqE8u5gL5ppao1JrUYr9cIip5S6MvQzBS7Kke7U9VA==",
+      "version": "4.2.22",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.22.tgz",
+      "integrity": "sha512-tFfcE+DSTzWAgifkjik9AySNqIyNoYwmR+uecPwwD/XRNfvOjmC/FjCxpiUGDkDVDphPfCUecSQVFw+lN3M3kQ==",
       "dev": true
     },
     "@types/component-emitter": {
@@ -813,12 +813,6 @@
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       "dev": true
     },
-    "@types/dom-mediacapture-record": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/@types/dom-mediacapture-record/-/dom-mediacapture-record-1.0.4.tgz",
-      "integrity": "sha512-3u6HCFY83HQ0Aqs5wq+bTSGRfSb4QAYERz+7nvm4sJf2h48NkJlGlLi082j3+xwC6ce3en9mRl3QUCH8mlLWmg==",
-      "dev": true
-    },
     "@types/eslint": {
       "version": "7.28.1",
       "resolved": "https://registry.npmjs.org/@types/eslint/-/eslint-7.28.1.tgz",
@@ -1442,9 +1436,9 @@
       "dev": true
     },
     "assertion-error": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.0.0.tgz",
-      "integrity": "sha1-x/hUOP3UZrx8oWq5DIFRN5el0js=",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
+      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
       "dev": true
     },
     "async": {
@@ -2639,13 +2633,17 @@
       "dev": true
     },
     "chai": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-1.10.0.tgz",
-      "integrity": "sha1-5AMcyHZURhp1lD5aNatG6vOcHrk=",
+      "version": "4.3.4",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.4.tgz",
+      "integrity": "sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==",
       "dev": true,
       "requires": {
-        "assertion-error": "1.0.0",
-        "deep-eql": "0.1.3"
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.2",
+        "deep-eql": "^3.0.1",
+        "get-func-name": "^2.0.0",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.0.5"
       }
     },
     "chalk": {
@@ -2661,6 +2659,12 @@
         "supports-color": "^2.0.0"
       }
     },
+    "check-error": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz",
+      "integrity": "sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=",
+      "dev": true
+    },
     "chokidar": {
       "version": "3.5.2",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.2.tgz",
@@ -3125,12 +3129,12 @@
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     },
     "deep-eql": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-0.1.3.tgz",
-      "integrity": "sha1-71WKyrjeJSBs1xOQbXTlaTDrafI=",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-3.0.1.tgz",
+      "integrity": "sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==",
       "dev": true,
       "requires": {
-        "type-detect": "0.1.1"
+        "type-detect": "^4.0.0"
       }
     },
     "deep-is": {
@@ -4394,6 +4398,12 @@
       "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
       "dev": true
     },
+    "get-func-name": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/get-func-name/-/get-func-name-2.0.0.tgz",
+      "integrity": "sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=",
+      "dev": true
+    },
     "get-intrinsic": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.1.1.tgz",
@@ -7267,6 +7277,12 @@
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       "dev": true
     },
+    "pathval": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.1.tgz",
+      "integrity": "sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==",
+      "dev": true
+    },
     "pbkdf2": {
       "version": "3.0.16",
       "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.0.16.tgz",
@@ -8807,9 +8823,9 @@
       }
     },
     "type-detect": {
-      "version": "0.1.1",
-      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-0.1.1.tgz",
-      "integrity": "sha1-C6XsKohWQORw6k6FBZcZANrFiCI=",
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
       "dev": true
     },
     "type-fest": {
diff --git a/package.json b/package.json
index b5755787..96f0658a 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
 		"karma:watch": "cross-var karma start ./test/karma.conf.cjs --auto-watch --file $npm_config_file --dir $npm_config_dir",
 		"lint": "eslint --ignore-pattern ./Tone/**/*.test.ts --ext ts ./Tone",
 		"lint:fix": "eslint --ext ts --fix ./Tone",
-		"scratch": "webpack -w --env.scratch --mode=development",
+		"scratch": "webpack -w --env scratch=1 --mode=development",
 		"test": "npm run karma",
 		"test:browser": "npm run karma:browser",
 		"test:examples": "node ./test/scripts/test_examples",
@@ -35,8 +35,8 @@
 		"test:watch": "npm run karma:watch",
 		"ts:build": "tsc --project ./scripts/tsconfig.build.json",
 		"watch": "tsc --watch",
-		"webpack:watch": "webpack -w --env.production --mode=development --config ./webpack.config.cjs",
-		"webpack:build": "webpack -p --env.production --config ./webpack.config.cjs"
+		"webpack:watch": "webpack -w --env production=1 --mode=development --config ./webpack.config.cjs",
+		"webpack:build": "webpack --env production=1 --config ./webpack.config.cjs"
 	},
 	"repository": {
 		"type": "git",
@@ -60,14 +60,13 @@
 	},
 	"devDependencies": {
 		"@tonejs/plot": "0.0.35",
-		"@types/chai": "^4.1.7",
-		"@types/dom-mediacapture-record": "^1.0.4",
+		"@types/chai": "^4.2.22",
 		"@types/mocha": "^5.2.6",
 		"@types/ua-parser-js": "^0.7.32",
 		"@typescript-eslint/eslint-plugin": "^2.28.0",
 		"@typescript-eslint/parser": "^2.28.0",
 		"async": "^3.1.0",
-		"chai": "^1.10.0",
+		"chai": "^4.3.4",
 		"codecov": "^3.1.0",
 		"cross-var": "^1.1.0",
 		"eslint": "^8.0.0",