diff --git a/Cargo.toml b/Cargo.toml
index a4f0df33..fd6bf9f4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT/Apache-2.0"
 description = "A serialization/deserialization framework"
 repository = "https://github.com/erickt/rust-serde"
 
-[dependencies]
+[dev-dependencies]
 rustc-serialize = "*"
 
 [dev-dependencies.serde_macros]