diff --git a/package.json b/package.json
index 92a8aa7..e7953f1 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "mocha": "^7.0.0",
     "nyc": "^15.0.0",
     "prettier": "~2.1.0",
-    "unexpected": "^11.0.0-4",
+    "unexpected": "^12.0.0",
     "unexpected-documentation-site-generator": "^6.0.0",
     "unexpected-markdown": "^5.0.0"
   },