diff --git a/package-lock.json b/package-lock.json
index d5f3271..6fe67e5 100644
--- a/package-lock.json
+++ b/package-lock.json
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+			"resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.0.0.tgz",
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+				"punycode": "^2.1.1",
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-			"integrity": "sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=",
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+			"resolved": "https://registry.npmjs.org/tr46/-/tr46-2.1.0.tgz",
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-			"integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
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 		},
+		"universalify": {
+			"version": "0.1.2",
+			"resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
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@@ -3742,12 +3739,10 @@
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+			"version": "2.0.0",
+			"resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-2.0.0.tgz",
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@@ -3760,9 +3755,9 @@
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+			"version": "6.1.0",
+			"resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-6.1.0.tgz",
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@@ -3778,13 +3773,13 @@
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+			"version": "8.7.0",
+			"resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-8.7.0.tgz",
+			"integrity": "sha512-gAojqb/m9Q8a5IV96E3fHJM70AzCkgt4uXYX2O7EmuyOnLrViCQlsEBmF9UQIu3/aeAIp2U17rtbpZWNntQqdg==",
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-				"tr46": "^1.0.1",
-				"webidl-conversions": "^4.0.2"
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+				"tr46": "^2.1.0",
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@@ -3836,9 +3831,9 @@
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+			"version": "7.5.8",
+			"resolved": "https://registry.npmjs.org/ws/-/ws-7.5.8.tgz",
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diff --git a/package.json b/package.json
index c46a619..5f70e56 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
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 		"image-data-uri": "^1.0.0",
 		"jimp": "^0.16.1",
-		"jsdom": "^15.0.0",
+		"jsdom": "^16.5.0",
 		"mathjs": "^7.3.0",
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 		"module-alias": "^2.2.2",