diff --git a/package-lock.json b/package-lock.json
index 640091b5..3ddd4acc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,7 +25,7 @@
         "@types/supertest": "^6.0.3",
         "@vitest/coverage-v8": "^3.2.4",
         "concurrently": "^9.1.2",
-        "happy-dom": "^16.8.1",
+        "happy-dom": "^20.7.0",
         "msw": "^2.12.10",
         "supertest": "^7.2.2",
         "vitest": "^3.2.4"
@@ -2207,6 +2207,23 @@
         "@types/superagent": "^8.1.0"
       }
     },
+    "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,
+      "license": "MIT"
+    },
+    "node_modules/@types/ws": {
+      "version": "8.18.1",
+      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.18.1.tgz",
+      "integrity": "sha512-ThVF6DCVhA8kUGy+aazFQ4kXQ7E1Ty7A3ypFOe0IcJV8O/M511G99AW24irKrW56Wt44yG9+ij8FaqoBGkuBXg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@vitejs/plugin-react": {
       "version": "5.1.4",
       "resolved": "https://registry.npmjs.org/@vitejs/plugin-react/-/plugin-react-5.1.4.tgz",
@@ -3997,6 +4014,19 @@
         "node": ">=10.0.0"
       }
     },
+    "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/es-define-property": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
@@ -4627,17 +4657,21 @@
       }
     },
     "node_modules/happy-dom": {
-      "version": "16.8.1",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-16.8.1.tgz",
-      "integrity": "sha512-n0QrmT9lD81rbpKsyhnlz3DgnMZlaOkJPpgi746doA+HvaMC79bdWkwjrNnGJRvDrWTI8iOcJiVTJ5CdT/AZRw==",
+      "version": "20.7.0",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.7.0.tgz",
+      "integrity": "sha512-hR/uLYQdngTyEfxnOoa+e6KTcfBFyc1hgFj/Cc144A5JJUuHFYqIEBDcD4FeGqUeKLRZqJ9eN9u7/GDjYEgS1g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "webidl-conversions": "^7.0.0",
-        "whatwg-mimetype": "^3.0.0"
+        "@types/node": ">=20.0.0",
+        "@types/whatwg-mimetype": "^3.0.2",
+        "@types/ws": "^8.18.1",
+        "entities": "^7.0.1",
+        "whatwg-mimetype": "^3.0.0",
+        "ws": "^8.18.3"
       },
       "engines": {
-        "node": ">=18.0.0"
+        "node": ">=20.0.0"
       }
     },
     "node_modules/har-schema": {
@@ -7901,16 +7935,6 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
-    "node_modules/webidl-conversions": {
-      "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,
-      "license": "BSD-2-Clause",
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/whatwg-mimetype": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-3.0.0.tgz",
diff --git a/package.json b/package.json
index e4c31e31..98aaae12 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "@types/supertest": "^6.0.3",
     "@vitest/coverage-v8": "^3.2.4",
     "concurrently": "^9.1.2",
-    "happy-dom": "^16.8.1",
+    "happy-dom": "^20.7.0",
     "msw": "^2.12.10",
     "supertest": "^7.2.2",
     "vitest": "^3.2.4"