diff --git a/package.json b/package.json
index 4f8fc95..8169c99 100644
--- a/package.json
+++ b/package.json
@@ -84,7 +84,7 @@
         "json-ptr": "^3.0.1",
         "json-schema-traverse": "^1.0.0",
         "lodash": "^4.17.11",
-        "openapi3-ts": "^3.1.1",
+        "openapi3-ts": "^4.3.1",
         "promise-breaker": "^6.0.0",
         "pump": "^3.0.0",
         "qs": "^6.6.0",