diff --git a/Cargo.toml b/Cargo.toml
index 9d54c72..59ad06b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,6 +39,7 @@ version = "1.0"
 
 [dev-dependencies.serde]
 version = "1.0"
+features = ["serde_derive"]
 
 [dev-dependencies.serde_derive]
 version = "1.0"