diff --git a/package.json b/package.json
index 373112a..2d19925 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "hoek": "^4.1.1",
     "joi": "^10.4.1",
     "require-plus": "^2.1.2",
-    "z-schema": "^3.18.2"
+    "z-schema": "^4.2.0"
   },
   "bin": {
     "yajsv": "./bin/yajsv"