diff --git a/package-lock.json b/package-lock.json
index d8cfdb9..f775562 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "@opencode/plugin": "2.2.1"
       },
       "devDependencies": {
-        "@types/node": "^24.0.0",
+        "@types/node": "^26.6.5",
         "jsdom": "^27.4.0",
         "solid-js": "^1.9.17",
         "typescript": "^5.9.3",
@@ -2933,12 +2933,12 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "24.19.2",
-      "resolved": "https://registry.npmmirror.com/@types/node/-/node-24.19.2.tgz",
-      "integrity": "sha512-93d49wCWJkCyN87MxLpNN6KXPCwFw7bVUg79mGUV1OS40JGWwVCr8n61DXCSqz7CV6/VfPkb7xec7uP2M+QHWQ==",
+      "version": "26.6.5",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.5.tgz",
+      "integrity": "sha512-uMzsv9stDdofIZBx4UGh4Z9ZgXnGC9seRDscilBcTHAeOFk67MZg/k9bWVfO+bk4qZmG+l52hRnLwUiH2LnJTg==",
       "license": "MIT",
       "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@types/ws": {
@@ -5893,9 +5893,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.24.6",
-      "resolved": "https://registry.npmmirror.com/undici-types/-/undici-types-7.24.6.tgz",
-      "integrity": "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==",
+      "version": "8.9.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.9.0.tgz",
+      "integrity": "sha512-KTDyRTYX8sWmKXAikPHHSyc63CRPETMctyjKFupcC6OBLXT3xsN0e9aF7m+mIXutFWpUXuedtowG7iLOzp0kQg==",
       "license": "MIT"
     },
     "node_modules/update-browserslist-db": {
diff --git a/package.json b/package.json
index a7b57f6..dc70a16 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "@opencode/plugin": "2.2.1"
   },
   "devDependencies": {
-    "@types/node": "^24.0.0",
+    "@types/node": "^26.6.5",
     "jsdom": "^27.4.0",
     "solid-js": "^1.9.17",
     "typescript": "^5.9.3",