diff --git a/package.json b/package.json
index 73e0921..6b3c018 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
   "license": "MIT",
   "dependencies": {
     "continuation-local-storage": "^3.1.7",
+    "depd": "^1.1.0",
     "optional": "^0.1.3"
   },
   "devDependencies": {