diff --git a/package-lock.json b/package-lock.json
index 72ceeb4..62e990b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "MIT",
       "devDependencies": {
         "@types/mocha": "^10.0.10",
-        "@types/node": "^20.0.0",
+        "@types/node": "^25.9.1",
         "@types/vscode": "^1.90.0",
         "@vscode/test-electron": "^2.5.2",
         "@vscode/vsce": "^3.0.0",
@@ -18,6 +18,7 @@
         "vscode-extension-tester": "^8.23.0"
       },
       "engines": {
+        "node": ">=20",
         "vscode": "^1.90.0"
       }
     },
@@ -695,13 +696,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "20.19.41",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.41.tgz",
-      "integrity": "sha512-ECymXOukMnOoVkC2bb1Vc/w/836DXncOg5m8Xj1RH7xSHZJWNYY6Zh7EH477vcnD5egKNNfy2RpNOmuChhFPgQ==",
+      "version": "25.9.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.1.tgz",
+      "integrity": "sha512-xfrlY7UD5rMJk3ZVJP8BNzS28J36YJg+xp+LPXV1TdWxr8uMH5A860QNxYDGQe/ylDSgjxE52Q9VnO7p75tJxg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": ">=7.24.0 <7.24.7"
       }
     },
     "node_modules/@types/normalize-package-data": {
@@ -6367,9 +6368,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "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==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index ffe60d4..0715cae 100644
--- a/package.json
+++ b/package.json
@@ -120,7 +120,7 @@
   },
   "devDependencies": {
     "@types/mocha": "^10.0.10",
-    "@types/node": "^20.0.0",
+    "@types/node": "^25.9.1",
     "@types/vscode": "^1.90.0",
     "@vscode/test-electron": "^2.5.2",
     "@vscode/vsce": "^3.0.0",