diff --git a/Cargo.lock b/Cargo.lock
index e26b8aec..ac0b4153 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -597,9 +597,9 @@ checksum = "7a66a03ae7c801facd77a29370b4faec201768915ac14a721ba36f20bc9c209b"
 
 [[package]]
 name = "rlp"
-version = "0.5.2"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb919243f34364b6bd2fc10ef797edbfa75f33c252e7998527479c6d6b47e1ec"
+checksum = "fa24e92bb2a83198bb76d661a71df9f7076b8c420b8696e4d3d97d50d94479e3"
 dependencies = [
  "bytes",
  "rustc-hex",
diff --git a/Cargo.toml b/Cargo.toml
index 78dfb6b9..5a40eeb7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ der = { version = "0.8.0-rc.1", optional = true, default-features = false }
 hybrid-array = { version = "0.2.0-rc.8", optional = true }
 num-traits = { version = "0.2.19", default-features = false }
 rand_core = { version = "0.6.4", optional = true }
-rlp = { version = "0.5", optional = true, default-features = false }
+rlp = { version = "0.6", optional = true, default-features = false }
 serdect = { version = "0.3.0-rc.0", optional = true, default-features = false }
 zeroize = { version = "1", optional = true, default-features = false }