diff --git a/crates/curve/Cargo.toml b/crates/curve/Cargo.toml
index bf4a08f..4dcbf71 100644
--- a/crates/curve/Cargo.toml
+++ b/crates/curve/Cargo.toml
@@ -10,7 +10,7 @@ num-bigint = { version = "0.4", default-features = false }
 rand = { version = "0.8", default-features = false }
 
 ## Parity
-parity-scale-codec = { version = "2.1", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.3", default-features = false, features = ["derive"] }
 
 ## Arkworks
 # https://github.com/arkworks-rs/utils
diff --git a/tests/Cargo.toml b/tests/Cargo.toml
index 3657957..4fb1643 100644
--- a/tests/Cargo.toml
+++ b/tests/Cargo.toml
@@ -11,7 +11,7 @@ num-traits = "0.2"
 rand = { version = "0.8", default-features = false }
 
 # Parity
-parity-scale-codec = { version = "2.1", default-features = false, features = [ "derive" ] }
+parity-scale-codec = { version = "3.3", default-features = false, features = [ "derive" ] }
 
 ## Arkworks
 ark-std = { version = "0.3", default-features = false }