diff --git a/package-lock.json b/package-lock.json
index 0d7e279..420f025 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "@types/node": "^25.2.3",
         "@vitest/coverage-v8": "^4.0.18",
         "eslint": "^10.0.0",
-        "happy-dom": "^20.5.0",
+        "happy-dom": "^20.6.1",
         "typedoc": "^0.28.17",
         "typescript": "5.9.3",
         "vitest": "^4.0.7"
@@ -2549,15 +2549,15 @@
       }
     },
     "node_modules/happy-dom": {
-      "version": "20.5.0",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.5.0.tgz",
-      "integrity": "sha512-VQe+Q5CYiGOgcCERXhcfNsbnrN92FDEKciMH/x6LppU9dd0j4aTjCTlqONFOIMcAm/5JxS3+utowbXV1OoFr+g==",
+      "version": "20.6.1",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.6.1.tgz",
+      "integrity": "sha512-+0vhESXXhFwkdjZnJ5DlmJIfUYGgIEEjzIjB+aKJbFuqlvvKyOi+XkI1fYbgYR9QCxG5T08koxsQ6HrQfa5gCQ==",
       "dev": true,
       "dependencies": {
         "@types/node": ">=20.0.0",
         "@types/whatwg-mimetype": "^3.0.2",
         "@types/ws": "^8.18.1",
-        "entities": "^4.5.0",
+        "entities": "^6.0.1",
         "whatwg-mimetype": "^3.0.0",
         "ws": "^8.18.3"
       },
@@ -2565,6 +2565,18 @@
         "node": ">=20.0.0"
       }
     },
+    "node_modules/happy-dom/node_modules/entities": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-6.0.1.tgz",
+      "integrity": "sha512-aN97NXWF6AWBTahfVOIrB/NShkzi5H7F9r1s9mD3cDj4Ko5f2qhhVoYMibXF7GlLveb/D2ioWay8lxI97Ven3g==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.12"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
+      }
+    },
     "node_modules/has-flag": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
@@ -5281,17 +5293,25 @@
       "dev": true
     },
     "happy-dom": {
-      "version": "20.5.0",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.5.0.tgz",
-      "integrity": "sha512-VQe+Q5CYiGOgcCERXhcfNsbnrN92FDEKciMH/x6LppU9dd0j4aTjCTlqONFOIMcAm/5JxS3+utowbXV1OoFr+g==",
+      "version": "20.6.1",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.6.1.tgz",
+      "integrity": "sha512-+0vhESXXhFwkdjZnJ5DlmJIfUYGgIEEjzIjB+aKJbFuqlvvKyOi+XkI1fYbgYR9QCxG5T08koxsQ6HrQfa5gCQ==",
       "dev": true,
       "requires": {
         "@types/node": ">=20.0.0",
         "@types/whatwg-mimetype": "^3.0.2",
         "@types/ws": "^8.18.1",
-        "entities": "^4.5.0",
+        "entities": "^6.0.1",
         "whatwg-mimetype": "^3.0.0",
         "ws": "^8.18.3"
+      },
+      "dependencies": {
+        "entities": {
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/entities/-/entities-6.0.1.tgz",
+          "integrity": "sha512-aN97NXWF6AWBTahfVOIrB/NShkzi5H7F9r1s9mD3cDj4Ko5f2qhhVoYMibXF7GlLveb/D2ioWay8lxI97Ven3g==",
+          "dev": true
+        }
       }
     },
     "has-flag": {
diff --git a/package.json b/package.json
index bd56e54..2af911e 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "@types/node": "^25.2.3",
     "@vitest/coverage-v8": "^4.0.18",
     "eslint": "^10.0.0",
-    "happy-dom": "^20.5.0",
+    "happy-dom": "^20.6.1",
     "typedoc": "^0.28.17",
     "typescript": "5.9.3",
     "vitest": "^4.0.7"