diff --git a/Cargo.lock b/Cargo.lock
index 0c24590b..49774a42 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4340,17 +4340,17 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "2.3.3"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07ff71d2c147a7b57362cead5e22f772cd52f6ab31cfcd9edcd7f6aeb2a0afbe"
+checksum = "9f02d8aa6e3c385bf084924f660ce2a3a6bd333ba55b35e8590b321f35d88513"
 dependencies = [
- "base64 0.13.1",
+ "base64 0.21.0",
  "chrono",
  "hex",
  "indexmap",
  "serde",
  "serde_json",
- "serde_with_macros 2.3.3",
+ "serde_with_macros 3.0.0",
  "time 0.3.20",
 ]
 
@@ -4368,9 +4368,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "2.3.3"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "881b6f881b17d13214e5d494c939ebab463d01264ce1811e9d4ac3a882e7695f"
+checksum = "edc7d5d3932fb12ce722ee5e64dd38c504efba37567f0c402f6ca728c3b8b070"
 dependencies = [
  "darling 0.20.0",
  "proc-macro2 1.0.56",
@@ -6036,7 +6036,7 @@ dependencies = [
  "serde",
  "serde-big-array",
  "serde_json",
- "serde_with 2.3.3",
+ "serde_with 3.0.0",
  "sha2 0.9.9",
  "spandoc",
  "static_assertions",
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index 5707dc3a..9f0ceea0 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -81,7 +81,7 @@ tracing = "0.1.37"
 # Serialization
 hex = { version = "0.4.3", features = ["serde"] }
 serde = { version = "1.0.160", features = ["serde_derive", "rc"] }
-serde_with = "2.3.3"
+serde_with = "3.0.0"
 serde-big-array = "0.5.1"
 
 # Processing