use npm-shrinkwrap ^200.0.0 ; fixes #15279

package.json

@@ -57,7 +57,7 @@
     "grunt-saucelabs": "~8.3.3",
     "grunt-sed": "~0.1.1",
     "load-grunt-tasks": "~1.0.0",
-    "npm-shrinkwrap": "5.0.0",
+    "npm-shrinkwrap": "^200.0.0",
     "remarkable": "~1.4.2",
     "time-grunt": "~1.0.0"
   },