diff --git a/Cargo.lock b/Cargo.lock
index fa62d9f5..442d1e24 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3865,9 +3865,9 @@ dependencies = [
 
 [[package]]
 name = "serde-big-array"
-version = "0.4.1"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3323f09a748af288c3dc2474ea6803ee81f118321775bffa3ac8f7e65c5e90e7"
+checksum = "f1bb66e1af4481c21cbc943cabb68b98aabb4d7f935e47d1b4de722ca09da0b4"
 dependencies = [
  "serde",
 ]
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index d302ef9b..b0385c10 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -79,7 +79,7 @@ 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 = "0.4.1"
+serde-big-array = "0.5.0"
 
 # Processing
 futures = "0.3.26"