diff --git a/Cargo.lock b/Cargo.lock
index 3991ff18..4bcf567a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3844,9 +3844,9 @@ dependencies = [
 
 [[package]]
 name = "serde-big-array"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bb66e1af4481c21cbc943cabb68b98aabb4d7f935e47d1b4de722ca09da0b4"
+checksum = "11fc7cc2c76d73e0f27ee52abbd64eec84d46f370c88371120433196934e4b7f"
 dependencies = [
  "serde",
 ]
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index 5b993511..49c379db 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -75,7 +75,7 @@ tracing = "0.1.37"
 hex = { version = "0.4.3", features = ["serde"] }
 serde = { version = "1.0.152", features = ["serde_derive", "rc"] }
 serde_with = "2.2.0"
-serde-big-array = "0.5.0"
+serde-big-array = "0.5.1"
 
 # Processing
 futures = "0.3.26"