diff --git a/package-lock.json b/package-lock.json
index cbe8d7db..a6594908 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -60,7 +60,7 @@
         "fast-deep-equal": "^3.1.3",
         "file-saver": "^2.0.5",
         "gl-matrix": "3.4.3",
-        "happy-dom": "^17.4.4",
+        "happy-dom": "^20.0.10",
         "itk-wasm": "1.0.0-b.188",
         "jszip": "3.10.0",
         "lint-staged": "10.5.4",
@@ -7278,6 +7278,12 @@
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       "dev": true
     },
+    "node_modules/@types/whatwg-mimetype": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-mimetype/-/whatwg-mimetype-3.0.2.tgz",
+      "integrity": "sha512-c2AKvDT8ToxLIOUlN51gTiHXflsfIFisS4pO7pDPoKouJCESkhZnEy623gwP9laCy5lnLDAw1vAzu2vM2YLOrA==",
+      "dev": true
+    },
     "node_modules/@types/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/@types/which/-/which-2.0.2.tgz",
@@ -15206,17 +15212,17 @@
       }
     },
     "node_modules/happy-dom": {
-      "version": "17.4.4",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-17.4.4.tgz",
-      "integrity": "sha512-/Pb0ctk3HTZ5xEL3BZ0hK1AqDSAUuRQitOmROPHhfUYEWpmTImwfD8vFDGADmMAX0JYgbcgxWoLFKtsWhcpuVA==",
+      "version": "20.0.10",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.0.10.tgz",
+      "integrity": "sha512-6umCCHcjQrhP5oXhrHQQvLB0bwb1UzHAHdsXy+FjtKoYjUhmNZsQL8NivwM1vDvNEChJabVrUYxUnp/ZdYmy2g==",
       "dev": true,
-      "license": "MIT",
       "dependencies": {
-        "webidl-conversions": "^7.0.0",
+        "@types/node": "^20.0.0",
+        "@types/whatwg-mimetype": "^3.0.2",
         "whatwg-mimetype": "^3.0.0"
       },
       "engines": {
-        "node": ">=18.0.0"
+        "node": ">=20.0.0"
       }
     },
     "node_modules/has": {
@@ -25468,6 +25474,8 @@
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz",
       "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==",
       "dev": true,
+      "optional": true,
+      "peer": true,
       "engines": {
         "node": ">=12"
       }
@@ -31607,6 +31615,12 @@
       "integrity": "sha512-UEMMm/Xn3DtEa+gpzUrOcDj+SJS1tk5YodjwOxcqStNhCfPcwgyC5Srg2ToVKyg2Fhq16Ffpb0UWUQHqoT9AMA==",
       "dev": true
     },
+    "@types/whatwg-mimetype": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-mimetype/-/whatwg-mimetype-3.0.2.tgz",
+      "integrity": "sha512-c2AKvDT8ToxLIOUlN51gTiHXflsfIFisS4pO7pDPoKouJCESkhZnEy623gwP9laCy5lnLDAw1vAzu2vM2YLOrA==",
+      "dev": true
+    },
     "@types/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/@types/which/-/which-2.0.2.tgz",
@@ -37314,12 +37328,13 @@
       }
     },
     "happy-dom": {
-      "version": "17.4.4",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-17.4.4.tgz",
-      "integrity": "sha512-/Pb0ctk3HTZ5xEL3BZ0hK1AqDSAUuRQitOmROPHhfUYEWpmTImwfD8vFDGADmMAX0JYgbcgxWoLFKtsWhcpuVA==",
+      "version": "20.0.10",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.0.10.tgz",
+      "integrity": "sha512-6umCCHcjQrhP5oXhrHQQvLB0bwb1UzHAHdsXy+FjtKoYjUhmNZsQL8NivwM1vDvNEChJabVrUYxUnp/ZdYmy2g==",
       "dev": true,
       "requires": {
-        "webidl-conversions": "^7.0.0",
+        "@types/node": "^20.0.0",
+        "@types/whatwg-mimetype": "^3.0.2",
         "whatwg-mimetype": "^3.0.0"
       }
     },
@@ -44530,7 +44545,9 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz",
       "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==",
-      "dev": true
+      "dev": true,
+      "optional": true,
+      "peer": true
     },
     "webpack": {
       "version": "5.75.0",
diff --git a/package.json b/package.json
index 7f166a92..cc9bd07e 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
     "fast-deep-equal": "^3.1.3",
     "file-saver": "^2.0.5",
     "gl-matrix": "3.4.3",
-    "happy-dom": "^17.4.4",
+    "happy-dom": "^20.0.10",
     "itk-wasm": "1.0.0-b.188",
     "jszip": "3.10.0",
     "lint-staged": "10.5.4",