diff --git a/package-lock.json b/package-lock.json
index 1adc078a..a0979a37 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -37,7 +37,7 @@
         "@wordpress/url": "4.5.0",
         "eslint": "8.57.0",
         "fork-ts-checker-webpack-plugin": "9.0.2",
-        "happy-dom": "14.12.3",
+        "happy-dom": "15.0.0",
         "phplint": "2.0.5",
         "prettier": "npm:wp-prettier@2.8.5",
         "react": "18.3.1",
@@ -17078,9 +17078,9 @@
       "dev": 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": "15.0.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.0.0.tgz",
+      "integrity": "sha512-DsvANUcxxY20iCo3Yllm7dqwzPVPduGfVFxa7mONwMBLczFeQgkN0LpDir1kIY322JMh+hrcPV3aGLyHCESDlA==",
       "dev": true,
       "dependencies": {
         "entities": "^4.5.0",
@@ -17088,7 +17088,7 @@
         "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 7746e37a..05f7e127 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "@wordpress/url": "4.5.0",
     "eslint": "8.57.0",
     "fork-ts-checker-webpack-plugin": "9.0.2",
-    "happy-dom": "14.12.3",
+    "happy-dom": "15.0.0",
     "phplint": "2.0.5",
     "prettier": "npm:wp-prettier@2.8.5",
     "react": "18.3.1",