diff --git a/Cargo.toml b/Cargo.toml
index 1443ca9..b2ef374 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ merlin = { version = "3.0.0", default-features = false }
 rand_core = { version = "0.6.4", default-features = false }
 serde = { version = "1.0.196", optional = true, default-features = false, features = ["derive"] }
 snafu = { version = "0.8.0", default-features = false }
-subtle = { version = "2.5.0", default-features = false, features = ["core_hint_black_box"] }
+subtle = { version = "2.5.0", default-features = false }
 zeroize = { version = "1.7.0", default-features = false }
 
 [dev-dependencies]