diff --git a/Cargo.toml b/Cargo.toml
index f3f163d..8add4a3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,6 @@ p256          = { version = "0.3", optional = true }
 rand          = { version = "0.7", optional = true }
 serde         = { version = "1.0", features = ["derive"] }
 serde_json    = "1.0"
-syn           = { version = "1.0", features = ["full"] } # required to parse const generics
 thiserror     = "1.0"
 yasna         = { version = "0.3", optional = true, features = ["num-bigint"] }
 zeroize       = { version = "1.1", features = ["zeroize_derive"] }