diff --git a/Cargo.lock b/Cargo.lock
index 63402a875..723f83df9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3836,9 +3836,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "2.0.1"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "368f2d60d049ea019a84dcd6687b0d1e0030fe663ae105039bdf967ed5e6a9a7"
+checksum = "25bf4a5a814902cd1014dbccfa4d4560fb8432c779471e96e035602519f82eef"
 dependencies = [
  "base64",
  "chrono",
@@ -3852,9 +3852,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "2.0.1"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ccadfacf6cf10faad22bbadf55986bdd0856edfb5d9210aa1dcf1f516e84e93"
+checksum = "e3452b4c0f6c1e357f73fdb87cd1efabaa12acf328c7a528e252893baeb3f4aa"
 dependencies = [
  "darling 0.14.1",
  "proc-macro2 1.0.42",
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index 0102e7a08..5bdbc3a5b 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -76,7 +76,7 @@ tracing = "0.1.37"
 # Serialization
 hex = { version = "0.4.3", features = ["serde"] }
 serde = { version = "1.0.147", features = ["serde_derive", "rc"] }
-serde_with = "2.0.1"
+serde_with = "2.1.0"
 serde-big-array = "0.4.1"
 
 # Processing