diff --git a/package.json b/package.json
index f531205..22a7aae 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "mocha": "^7.0.0",
     "nyc": "^15.0.0",
     "prettier": "~2.2.0",
-    "unexpected": "^11.12.1"
+    "unexpected": "^12.0.0"
   },
   "files": [
     "lib",