diff --git a/package-lock.json b/package-lock.json
index a30cfccb1..ba8c5f981 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
         "vscode-languageclient": "^9.0.1",
         "vscode-uri": "^3.0.7",
         "which": "^5.0.0",
-        "zod": "^3.21.4"
+        "zod": "^4.0.17"
       },
       "devDependencies": {
         "@esbuild-plugins/node-globals-polyfill": "^0.2.3",
@@ -11610,9 +11610,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.0.17",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.0.17.tgz",
+      "integrity": "sha512-1PHjlYRevNxxdy2JZ8JcNAw7rX8V9P1AKkP+x/xZfxB0K5FYfuV+Ug6P/6NVSR2jHQ+FzDDoDHS04nYUsOIyLQ==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index 331f914ca..3d1270931 100644
--- a/package.json
+++ b/package.json
@@ -964,7 +964,7 @@
     "vscode-languageclient": "^9.0.1",
     "vscode-uri": "^3.0.7",
     "which": "^5.0.0",
-    "zod": "^3.21.4"
+    "zod": "^4.0.17"
   },
   "devDependencies": {
     "@esbuild-plugins/node-globals-polyfill": "^0.2.3",