diff --git a/package.json b/package.json
index f393e85..3883fd9 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,6 @@
     "coveralls": "^3.0.0",
     "istanbul": "^0.4.5",
     "mocha": "^4.0.0",
-    "should": "^13.0.0"
+    "should": "^13.1.3"
   }
 }