diff --git a/bun.lock b/bun.lock
index 98bef59..ba5d674 100644
--- a/bun.lock
+++ b/bun.lock
@@ -36,7 +36,7 @@
         "@nuxtjs/i18n": "^10.6.0",
         "@types/node": "^26.6.4",
         "@vue/compiler-sfc": "3.5.43",
-        "happy-dom": "^20.14.5",
+        "happy-dom": "^21.0.0",
         "oxfmt": "^0.72.0",
         "oxlint": "^1.87.0",
         "oxlint-tsgolint": "^7.0.2003",
@@ -1403,7 +1403,7 @@
 
     "hachure-fill": ["hachure-fill@0.5.2", "", {}, "sha512-3GKBOn+m2LX9iq+JC1064cSFprJY4jL1jCXTcpnfER5HYE2l/4EfWSGzkPa/ZDBmYI0ZOEj5VHV/eKnPGkHuOg=="],
 
-    "happy-dom": ["happy-dom@20.14.6", "", { "dependencies": { "@types/node": ">=20.0.0", "@types/whatwg-mimetype": "^3.0.2", "@types/ws": "^8.18.1", "buffer-image-size": "^0.6.4", "entities": "^7.0.1", "whatwg-mimetype": "^3.0.0", "ws": "^8.21.0" } }, "sha512-5DDsf4QmEIlRL6NkCv/fxSjYHHkZceL/IaYQdJc2h3G7DRTEai++VTjbfL0LB9geW2VrA3+vrjF3Efx+OTtX0Q=="],
+    "happy-dom": ["happy-dom@21.0.1", "", { "dependencies": { "@types/node": ">=20.0.0", "@types/whatwg-mimetype": "^3.0.2", "@types/ws": "^8.18.1", "buffer-image-size": "^0.6.4", "entities": "^7.0.1", "whatwg-mimetype": "^3.0.0", "ws": "^8.21.0" } }, "sha512-pRBs/u9fhrncyByOl58DMex0R2uAj6ZPKWIjV5j5yNGZBqLw3P6BTRhlc0DD5b/Ht4/6JYTMuE2LJhUWRC6SGw=="],
 
     "has-flag": ["has-flag@4.0.0", "", {}, "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ=="],
 
diff --git a/package.json b/package.json
index 137135e..232eff4 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "@nuxtjs/i18n": "^10.6.0",
     "@types/node": "^26.6.4",
     "@vue/compiler-sfc": "3.5.43",
-    "happy-dom": "^20.14.5",
+    "happy-dom": "^21.0.0",
     "oxfmt": "^0.72.0",
     "oxlint": "^1.87.0",
     "oxlint-tsgolint": "^7.0.2003",