diff --git a/package-lock.json b/package-lock.json
index c21d18a..044f3bd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
       },
       "devDependencies": {
         "@types/jest": "^30.0.0",
-        "@types/node": "^25.5.0",
+        "@types/node": "^26.6.2",
         "@types/vscode": "^1.110.0",
         "@typescript-eslint/eslint-plugin": "^8.57.2",
         "@typescript-eslint/parser": "^8.57.2",
@@ -2410,13 +2410,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "25.9.8",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.8.tgz",
-      "integrity": "sha512-VfMrScDmMhUJQmd5hArdQnFvK0OIeD36uN2Va1FcpYaLB/BgkgM8Ulc50XtYISPMz7APJ30+N0T5EM0jlcdfRw==",
+      "version": "26.6.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.2.tgz",
+      "integrity": "sha512-X1P21scMv4zGKLYqjdGjaKa7COa0RKVYYZZN/NfvLQ1JegxFhdhpZG/Lyn8AXx6CDUavKAd11v6BvfpkDByK8g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@types/stack-utils": {
@@ -8209,9 +8209,9 @@
       "license": "MIT"
     },
     "node_modules/undici-types": {
-      "version": "7.24.6",
-      "resolved": "https://registry.npmjs.org/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==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index de15abd..211d081 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
   "private": true,
   "devDependencies": {
     "@types/jest": "^30.0.0",
-    "@types/node": "^25.5.0",
+    "@types/node": "^26.6.2",
     "@types/vscode": "^1.110.0",
     "@typescript-eslint/eslint-plugin": "^8.57.2",
     "@typescript-eslint/parser": "^8.57.2",