diff --git a/Cargo.toml b/Cargo.toml
index a5ffdc7..ab7fba2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ log = { version = "0.4", default-features = false }
 evm-core = { version = "0.18", path = "core", default-features = false, features = ["with-serde"] }
 evm-runtime = { version = "0.18", path = "runtime", default-features = false }
 sha3 = { version = "0.8", default-features = false }
-rlp = { version = "0.5", default-features = false }
+rlp = { version = "0.6", default-features = false }
 serde = { version = "1.0", default-features = false, features = ["derive"], optional = true }
 serde_bytes = { version = "0.11.5", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3", default-features = false, features = ["derive"], optional = true }