diff --git a/core/cli/package.json b/core/cli/package.json
index 64768e7de..80bd04b11 100644
--- a/core/cli/package.json
+++ b/core/cli/package.json
@@ -47,7 +47,7 @@
     "pretty-format": "^29.7.0",
     "tslib": "^2.8.1",
     "yaml": "^2.8.0",
-    "zod-validation-error": "^3.4.1"
+    "zod-validation-error": "^4.0.2"
   },
   "engines": {
     "node": "18.x || 20.x || 22.x"
diff --git a/package-lock.json b/package-lock.json
index baa280c7e..c5170d135 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -65,7 +65,7 @@
         "pretty-format": "^29.7.0",
         "tslib": "^2.8.1",
         "yaml": "^2.8.0",
-        "zod-validation-error": "^3.4.1"
+        "zod-validation-error": "^4.0.2"
       },
       "bin": {
         "dotcom-tool-kit": "bin/run"
@@ -32325,13 +32325,15 @@
       }
     },
     "node_modules/zod-validation-error": {
-      "version": "3.5.2",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/zod-validation-error/-/zod-validation-error-4.0.2.tgz",
+      "integrity": "sha512-Q6/nZLe6jxuU80qb/4uJ4t5v2VEZ44lzQjPDhYJNztRQ4wyWc6VF3D3Kb/fAuPetZQnhS3hnajCf9CsWesghLQ==",
       "license": "MIT",
       "engines": {
         "node": ">=18.0.0"
       },
       "peerDependencies": {
-        "zod": "^3.25.0"
+        "zod": "^3.25.0 || ^4.0.0"
       }
     },
     "node_modules/zod2md": {