diff --git a/Cargo.toml b/Cargo.toml
index fc87a11..4fb9d9d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ curve25519-dalek = { version = "2", default-features = false }
 merlin = { version = "1", default-features = false, optional = true, git = "https://github.com/isislovecruft/merlin", branch = "develop" }
 rand = { version = "0.7", default-features = false, optional = true }
 rand_core = { version = "0.5", default-features = false, optional = true }
-serde = { version = "1.0", optional = true }
+serde = { version = "1.0", default-features = false, optional = true }
 sha2 = { version = "0.8", default-features = false }
 zeroize = { version = "1", default-features = false, features = ["zeroize_derive"] }