diff --git a/package-lock.json b/package-lock.json
index 2478a7df..437a6196 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35,7 +35,7 @@
       },
       "devDependencies": {
         "@eslint/js": "9.39.4",
-        "@types/jsdom": "27.0.0",
+        "@types/jsdom": "28.0.1",
         "@types/koa": "3.0.2",
         "@types/koa__router": "12.0.5",
         "@types/koa-compress": "4.0.7",
@@ -1385,17 +1385,25 @@
       "license": "MIT"
     },
     "node_modules/@types/jsdom": {
-      "version": "27.0.0",
-      "resolved": "https://registry.npmjs.org/@types/jsdom/-/jsdom-27.0.0.tgz",
-      "integrity": "sha512-NZyFl/PViwKzdEkQg96gtnB8wm+1ljhdDay9ahn4hgb+SfVtPCbm3TlmDUFXTA+MGN3CijicnMhG18SI5H3rFw==",
+      "version": "28.0.1",
+      "resolved": "https://registry.npmjs.org/@types/jsdom/-/jsdom-28.0.1.tgz",
+      "integrity": "sha512-GJq2QE4TAZ5ajSoCasn5DOFm8u1mI3tIFvM5tIq3W5U/RTB6gsHwc6Yhpl91X9VSDOUVblgXmG+2+sSvFQrdlw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "@types/node": "*",
         "@types/tough-cookie": "*",
-        "parse5": "^7.0.0"
+        "parse5": "^7.0.0",
+        "undici-types": "^7.21.0"
       }
     },
+    "node_modules/@types/jsdom/node_modules/undici-types": {
+      "version": "7.25.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.25.0.tgz",
+      "integrity": "sha512-AXNgS1Byr27fTI+2bsPEkV9CxkT8H6xNyRI68b3TatlZo3RkzlqQBLL+w7SmGPVpokjHbcuNVQUWE7FRTg+LRA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/json-schema": {
       "version": "7.0.15",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
diff --git a/package.json b/package.json
index 77ff6709..5f37d590 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
   },
   "devDependencies": {
     "@eslint/js": "9.39.4",
-    "@types/jsdom": "27.0.0",
+    "@types/jsdom": "28.0.1",
     "@types/koa": "3.0.2",
     "@types/koa__router": "12.0.5",
     "@types/koa-compress": "4.0.7",