diff --git a/package.json b/package.json
index 72e50ab..e74e042 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "rollup-plugin-node-globals": "^1.4.0",
     "rollup-plugin-node-resolve": "^5.0.0",
     "rollup-plugin-terser": "^7.0.0",
-    "unexpected": "^12.0.0",
+    "unexpected": "^13.0.0",
     "unexpected-documentation-site-generator": "^7.0.1",
     "unexpected-snapshot": "^2.0.0"
   },