diff --git a/package-lock.json b/package-lock.json
index a725e954750..000d4ebd726 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
                 "plugins/*"
             ],
             "dependencies": {
-                "@types/node": "^22.7.5",
+                "@types/node": "^18.19.55",
                 "vscode-nls": "^5.2.0",
                 "vscode-nls-dev": "^4.0.4"
             },
@@ -7059,12 +7059,12 @@
             "license": "MIT"
         },
         "node_modules/@types/node": {
-            "version": "22.7.5",
-            "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.5.tgz",
-            "integrity": "sha512-jML7s2NAzMWc//QSJ1a3prpk78cOPchGvXJsC3C6R6PSMoooztvRVQEz89gmBTBY1SPMaqo5teB4uNHPdetShQ==",
+            "version": "18.19.55",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-18.19.55.tgz",
+            "integrity": "sha512-zzw5Vw52205Zr/nmErSEkN5FLqXPuKX/k5d1D7RKHATGqU7y6YfX9QxZraUzUrFGqH6XzOzG196BC35ltJC4Cw==",
             "license": "MIT",
             "dependencies": {
-                "undici-types": "~6.19.2"
+                "undici-types": "~5.26.4"
             }
         },
         "node_modules/@types/node-fetch": {
@@ -17786,9 +17786,9 @@
             "license": "MIT"
         },
         "node_modules/undici-types": {
-            "version": "6.19.8",
-            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
-            "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+            "version": "5.26.5",
+            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
+            "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
             "license": "MIT"
         },
         "node_modules/unescape-html": {
diff --git a/package.json b/package.json
index 3e8821b017c..39f4fe478eb 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
         "webpack-merge": "^5.10.0"
     },
     "dependencies": {
-        "@types/node": "^22.7.5",
+        "@types/node": "^18.19.55",
         "vscode-nls": "^5.2.0",
         "vscode-nls-dev": "^4.0.4"
     }
diff --git a/packages/core/src/test/techdebt.test.ts b/packages/core/src/test/techdebt.test.ts
index 43a2d180f59..7c3a8ad1436 100644
--- a/packages/core/src/test/techdebt.test.ts
+++ b/packages/core/src/test/techdebt.test.ts
@@ -35,6 +35,8 @@ describe('tech debt', function () {
             semver.lt(minNodejs, '18.0.0'),
             'with node16+, we can now use AbortController to cancel Node things (child processes, HTTP requests, etc.)'
         )
+        // This is relevant for the use of `fs.cpSync` in the copyFiles scripts.
+        assert.ok(semver.lt(minNodejs, '18.0.0'), 'with node18+, we can remove the dependency on @types/node@18')
     })
 
     it('remove separate sessions login edge cases', async function () {