diff --git a/package.json b/package.json
index cc656489..2f43fab7 100644
--- a/package.json
+++ b/package.json
@@ -32,8 +32,8 @@
   "dependencies": {
     "ajv": "^6.12.2",
     "content-type": "^1.0.4",
-    "js-yaml": "^3.14.0",
-    "json-schema-ref-parser": "^8.0.0",
+    "js-yaml": "^4.1.1",
+    "json-schema-ref-parser": "^9.0.9",
     "lodash.merge": "^4.6.2",
     "lodash.uniq": "^4.5.0",
     "lodash.zipobject": "^4.1.3",