diff --git a/package.json b/package.json
index e9332b2..2a6d220 100644
--- a/package.json
+++ b/package.json
@@ -100,7 +100,7 @@
     "eslint": "^9.34.0",
     "fake-indexeddb": "^6.2.2",
     "globals": "^16.3.0",
-    "happy-dom": "^18.0.1",
+    "happy-dom": "^20.0.0",
     "nanospy": "^1.0.0",
     "nanostores": "^1.0.1",
     "picocolors": "^1.1.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9b60c4f..908f6b1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -65,7 +65,7 @@ importers:
         version: 8.18.1
       '@vitest/coverage-v8':
         specifier: ^3.2.4
-        version: 3.2.4(vitest@3.2.4(@types/node@24.3.0)(happy-dom@18.0.1)(jiti@2.5.1)(yaml@2.8.1))
+        version: 3.2.4(vitest@3.2.4(@types/node@24.3.0)(happy-dom@20.0.0)(jiti@2.5.1)(yaml@2.8.1))
       '@vue/compiler-sfc':
         specifier: ^3.5.20
         version: 3.5.20
@@ -88,8 +88,8 @@ importers:
         specifier: ^16.3.0
         version: 16.3.0
       happy-dom:
-        specifier: ^18.0.1
-        version: 18.0.1
+        specifier: ^20.0.0
+        version: 20.0.0
       nanospy:
         specifier: ^1.0.0
         version: 1.0.0
@@ -128,7 +128,7 @@ importers:
         version: 7.1.5(@types/node@24.3.0)(jiti@2.5.1)(yaml@2.8.1)
       vitest:
         specifier: ^3.2.4
-        version: 3.2.4(@types/node@24.3.0)(happy-dom@18.0.1)(jiti@2.5.1)(yaml@2.8.1)
+        version: 3.2.4(@types/node@24.3.0)(happy-dom@20.0.0)(jiti@2.5.1)(yaml@2.8.1)
       vue:
         specifier: ^3.5.20
         version: 3.5.20(typescript@5.9.2)
@@ -683,8 +683,8 @@ packages:
   '@types/json-schema@7.0.15':
     resolution: {integrity: sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==}
 
-  '@types/node@20.19.11':
-    resolution: {integrity: sha512-uug3FEEGv0r+jrecvUUpbY8lLisvIjg6AAic6a2bSP5OEOLeJsDSnvhCDov7ipFFMXS3orMpzlmi0ZcuGkBbow==}
+  '@types/node@20.19.20':
+    resolution: {integrity: sha512-2Q7WS25j4pS1cS8yw3d6buNCVJukOTeQ39bAnwR6sOJbaxvyCGebzTMypDFN82CxBLnl+lSWVdCCWbRY6y9yZQ==}
 
   '@types/node@24.3.0':
     resolution: {integrity: sha512-aPTXCrfwnDLj4VvXrm+UUCQjNEvJgNA8s5F1cvwQU+3KNltTOkBm1j30uNLyqqPNe7gE3KFzImYoZEfLhp4Yow==}
@@ -1470,8 +1470,8 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
-  happy-dom@18.0.1:
-    resolution: {integrity: sha512-qn+rKOW7KWpVTtgIUi6RVmTBZJSe2k0Db0vh1f7CWrWclkkc7/Q+FrOfkZIb2eiErLyqu5AXEzE7XthO9JVxRA==}
+  happy-dom@20.0.0:
+    resolution: {integrity: sha512-GkWnwIFxVGCf2raNrxImLo397RdGhLapj5cT3R2PT7FwL62Ze1DROhzmYW7+J3p9105DYMVenEejEbnq5wA37w==}
     engines: {node: '>=20.0.0'}
 
   has-bigints@1.1.0:
@@ -2720,7 +2720,7 @@ snapshots:
 
   '@types/json-schema@7.0.15': {}
 
-  '@types/node@20.19.11':
+  '@types/node@20.19.20':
     dependencies:
       undici-types: 6.21.0
 
@@ -2896,7 +2896,7 @@ snapshots:
   '@unrs/resolver-binding-win32-x64-msvc@1.11.1':
     optional: true
 
-  '@vitest/coverage-v8@3.2.4(vitest@3.2.4(@types/node@24.3.0)(happy-dom@18.0.1)(jiti@2.5.1)(yaml@2.8.1))':
+  '@vitest/coverage-v8@3.2.4(vitest@3.2.4(@types/node@24.3.0)(happy-dom@20.0.0)(jiti@2.5.1)(yaml@2.8.1))':
     dependencies:
       '@ampproject/remapping': 2.3.0
       '@bcoe/v8-coverage': 1.0.2
@@ -2911,7 +2911,7 @@ snapshots:
       std-env: 3.9.0
       test-exclude: 7.0.1
       tinyrainbow: 2.0.0
-      vitest: 3.2.4(@types/node@24.3.0)(happy-dom@18.0.1)(jiti@2.5.1)(yaml@2.8.1)
+      vitest: 3.2.4(@types/node@24.3.0)(happy-dom@20.0.0)(jiti@2.5.1)(yaml@2.8.1)
     transitivePeerDependencies:
       - supports-color
 
@@ -3647,9 +3647,9 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  happy-dom@18.0.1:
+  happy-dom@20.0.0:
     dependencies:
-      '@types/node': 20.19.11
+      '@types/node': 20.19.20
       '@types/whatwg-mimetype': 3.0.2
       whatwg-mimetype: 3.0.0
 
@@ -4380,7 +4380,7 @@ snapshots:
       jiti: 2.5.1
       yaml: 2.8.1
 
-  vitest@3.2.4(@types/node@24.3.0)(happy-dom@18.0.1)(jiti@2.5.1)(yaml@2.8.1):
+  vitest@3.2.4(@types/node@24.3.0)(happy-dom@20.0.0)(jiti@2.5.1)(yaml@2.8.1):
     dependencies:
       '@types/chai': 5.2.2
       '@vitest/expect': 3.2.4
@@ -4407,7 +4407,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 24.3.0
-      happy-dom: 18.0.1
+      happy-dom: 20.0.0
     transitivePeerDependencies:
       - jiti
       - less