diff --git a/package-lock.json b/package-lock.json
index e4ba5b3..48ad786 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,7 @@
         "esbuild": "0.28.2",
         "eslint": "^9.18.0",
         "fake-indexeddb": "6.2.5",
-        "happy-dom": "21.0.1",
+        "happy-dom": "21.0.4",
         "tsx": "^4.19.2",
         "typescript": "^5.7.3",
         "typescript-eslint": "8.71.2",
@@ -113,15 +113,6 @@
         }
       }
     },
-    "node_modules/@cloudflare/vitest-pool-workers/node_modules/@cloudflare/workers-types": {
-      "version": "4.20260702.1",
-      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260702.1.tgz",
-      "integrity": "sha512-mOhf5TUEB1m2vPrxtqoIGfz0fUC9xyxRDx5gWHy5s+OCo6dcV+g7wI1R7gYCMFohhqF/2y2xeKVwMwCJjfn/WA==",
-      "dev": true,
-      "license": "MIT OR Apache-2.0",
-      "optional": true,
-      "peer": true
-    },
     "node_modules/@cloudflare/vitest-pool-workers/node_modules/@esbuild/aix-ppc64": {
       "version": "0.27.3",
       "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.27.3.tgz",
@@ -3955,9 +3946,9 @@
       }
     },
     "node_modules/happy-dom": {
-      "version": "21.0.1",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-21.0.1.tgz",
-      "integrity": "sha512-pRBs/u9fhrncyByOl58DMex0R2uAj6ZPKWIjV5j5yNGZBqLw3P6BTRhlc0DD5b/Ht4/6JYTMuE2LJhUWRC6SGw==",
+      "version": "21.0.4",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-21.0.4.tgz",
+      "integrity": "sha512-tFm+GaLBgo6o0awHnvHaNoraVo27qJ+2tZEtZ+cIa08hXbeitrxAJajLI05hsUy/2/YTKcUjQYzHe5mCcraLBw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index c058211..9b24352 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "esbuild": "0.28.2",
     "eslint": "^9.18.0",
     "fake-indexeddb": "6.2.5",
-    "happy-dom": "21.0.1",
+    "happy-dom": "21.0.4",
     "tsx": "^4.19.2",
     "typescript": "^5.7.3",
     "typescript-eslint": "8.71.2",