diff --git a/README.md b/README.md
index 748bcd61..6268a407 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 napi = "0.4"
+napi-derive = "0.4"
 
 [build-dependencies]
 napi-build = "0.2"