diff --git a/package-lock.json b/package-lock.json
index 54c07afe..df5b9cd9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35,7 +35,7 @@
                 "eslint": "^9.0.0",
                 "eslint-config-next": "^16.1.0",
                 "globals": "^17.3.0",
-                "happy-dom": "^20.5.0",
+                "happy-dom": "^20.9.0",
                 "typescript": "^5.9.0",
                 "vitest": "^4.0.18"
             }
@@ -5165,16 +5165,16 @@
             "license": "ISC"
         },
         "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": "20.9.0",
+            "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.9.0.tgz",
+            "integrity": "sha512-GZZ9mKe8r646NUAf/zemnGbjYh4Bt8/MqASJY+pSm5ZDtc3YQox+4gsLI7yi1hba6o+eCsGxpHn5+iEVn31/FQ==",
             "dev": true,
             "license": "MIT",
             "dependencies": {
                 "@types/node": ">=20.0.0",
                 "@types/whatwg-mimetype": "^3.0.2",
                 "@types/ws": "^8.18.1",
-                "entities": "^4.5.0",
+                "entities": "^7.0.1",
                 "whatwg-mimetype": "^3.0.0",
                 "ws": "^8.18.3"
             },
@@ -5182,6 +5182,19 @@
                 "node": ">=20.0.0"
             }
         },
+        "node_modules/happy-dom/node_modules/entities": {
+            "version": "7.0.1",
+            "resolved": "https://registry.npmjs.org/entities/-/entities-7.0.1.tgz",
+            "integrity": "sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==",
+            "dev": true,
+            "license": "BSD-2-Clause",
+            "engines": {
+                "node": ">=0.12"
+            },
+            "funding": {
+                "url": "https://github.com/fb55/entities?sponsor=1"
+            }
+        },
         "node_modules/has-bigints": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/has-bigints/-/has-bigints-1.0.2.tgz",
diff --git a/package.json b/package.json
index a195fd8f..37bb040e 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
         "eslint": "^9.0.0",
         "eslint-config-next": "^16.1.0",
         "globals": "^17.3.0",
-        "happy-dom": "^20.5.0",
+        "happy-dom": "^20.9.0",
         "typescript": "^5.9.0",
         "vitest": "^4.0.18"
     }