diff --git a/package.json b/package.json
index f5351ac..7ff1c2d 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "gulp-mocha": "^2.1.3",
     "linear-arbitrary-precision": "^3.1.0",
     "rimraf": "^2.4.3",
-    "should": "^8.0.2"
+    "should": "^11.1.1"
   },
   "dependencies": {
     "binary-op-arbitrary-precision": "^1.4.0"