diff --git a/Cargo.toml b/Cargo.toml
index 94d9f96..837a0e8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,7 @@ merlin = { version = "2", default-features = false, optional = true }
 rand = { version = "0.7", default-features = false, optional = true }
 rand_core = { version = "0.5", default-features = false, optional = true }
 serde_crate = { package = "serde", version = "1.0", default-features = false, optional = true }
-serde_bytes = { version = "0.11", optional = true }
+serde_bytes = { version = "0.11", default-features = false, features = ["alloc"], optional = true }
 sha2 = { version = "0.9", default-features = false }
 zeroize = { version = "1", default-features = false, features = ["zeroize_derive"] }