diff --git a/package.json b/package.json
index 05b9ea2..1db96fa 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "gulp-mocha": "^2.0.0",
     "rescale-util": "^3.0.0",
     "rimraf": "^2.3.2",
-    "should": "^7.1.0"
+    "should": "^8.0.0"
   },
   "dependencies": {
     "unit-scale": "^1.0.0"