diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 652dc6cd80..9b6056728d 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -32,14 +32,6 @@
       "from": "core-util-is@>=1.0.0 <1.1.0",
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz"
     },
-    "definition-header": {
-      "version": "0.3.1",
-      "from": "definition-header@>=0.3.1 <0.4.0"
-    },
-    "definition-tester": {
-      "version": "2.0.0-alpha",
-      "from": "definition-tester@>= 2.0.0-alpha"
-    },
     "findup-sync": {
       "version": "0.3.0",
       "from": "findup-sync@>=0.3.0 <0.4.0",