diff --git a/package.json b/package.json
index d390583..da83322 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "prettier": "~2.1.0",
     "serve-static": "^1.11.1",
     "sinon": "^9.0.0",
-    "unexpected": "^11.0.0",
+    "unexpected": "^12.0.0",
     "unexpected-express": "^12.0.0",
     "unexpected-sinon": "^10.5.0"
   },