diff --git a/package.json b/package.json
index 74e03b9..d1dfd4f 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "dependencies": {
     "eslint-plugin-n": "^15.1.0",
     "magicpen-prism": "^5.0.0",
-    "unexpected": "^12.0.0"
+    "unexpected": "^13.0.0"
   },
   "devDependencies": {
     "coveralls": "^3.0.2",