diff --git a/package-lock.json b/package-lock.json
index 9fc6fba2..f9534b8c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -39,7 +39,7 @@
         "@zamiell/typedoc-plugin-not-exported": "^0.3.0",
         "gettext-extractor": "^3.8.0",
         "gettext-parser": "^8.0.0",
-        "happy-dom": "^14.12.3",
+        "happy-dom": "^15.8.0",
         "sass": "^1.80.6",
         "stylelint": "^15.11.0",
         "tslib": "^2.7.0",
@@ -7027,9 +7027,9 @@
       "peer": true
     },
     "node_modules/happy-dom": {
-      "version": "14.12.3",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-14.12.3.tgz",
-      "integrity": "sha512-vsYlEs3E9gLwA1Hp+w3qzu+RUDFf4VTT8cyKqVICoZ2k7WM++Qyd2LwzyTi5bqMJFiIC/vNpTDYuxdreENRK/g==",
+      "version": "15.8.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.8.0.tgz",
+      "integrity": "sha512-LwBvPvR4MQ1xfrf4gbWRJzeL2xQqWiEiHvZF5uA1AwlCCgjH9ht0fGVXciRGQCghdHAIXw1zGX1mJ6a3O0fpeA==",
       "dev": true,
       "dependencies": {
         "entities": "^4.5.0",
@@ -7037,7 +7037,7 @@
         "whatwg-mimetype": "^3.0.0"
       },
       "engines": {
-        "node": ">=16.0.0"
+        "node": ">=18.0.0"
       }
     },
     "node_modules/hard-rejection": {
diff --git a/package.json b/package.json
index ec0c7e31..6fba53c6 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
     "@zamiell/typedoc-plugin-not-exported": "^0.3.0",
     "gettext-extractor": "^3.8.0",
     "gettext-parser": "^8.0.0",
-    "happy-dom": "^14.12.3",
+    "happy-dom": "^15.8.0",
     "sass": "^1.80.6",
     "stylelint": "^15.11.0",
     "tslib": "^2.7.0",