diff --git a/package.json b/package.json
index a53378c..31ad8f7 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "typescript": "4.2.3"
   },
   "peerDependencies": {
-    "js-yaml": "^3.13.1"
+    "js-yaml": "^4"
   },
   "nyc": {
     "extends": "@istanbuljs/nyc-config-typescript"