diff --git a/package.json b/package.json
index c764244..d631e7a 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,13 @@
     "dependency-check": "dependency-check . test.js",
     "prepublishOnly": "npm run dependency-check"
   },
+  "files": [
+    "errors.js",
+    "CHANGELOG.md",
+    "CONTRIBUTORS.md",
+    "LICENSE.md",
+    "UPGRADING.md"
+  ],
   "dependencies": {
     "errno": "^1.0.0"
   },