diff --git a/bolt-sidecar/Cargo.lock b/bolt-sidecar/Cargo.lock
index 591c2a45..8229c1ac 100644
--- a/bolt-sidecar/Cargo.lock
+++ b/bolt-sidecar/Cargo.lock
@@ -1606,7 +1606,7 @@ dependencies = [
  "tower-http",
  "tracing",
  "tracing-subscriber",
- "tree_hash 0.8.0",
+ "tree_hash 0.9.0",
  "tree_hash_derive",
 ]
 
@@ -8287,6 +8287,19 @@ dependencies = [
  "smallvec",
 ]
 
+[[package]]
+name = "tree_hash"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3cc60ae4c4236ee721305d0f0b5aa3e8ef5b66f3fa61d17072430bc246d6694a"
+dependencies = [
+ "alloy-primitives 0.8.15",
+ "ethereum_hashing 0.7.0",
+ "ethereum_ssz 0.8.1",
+ "smallvec",
+ "typenum",
+]
+
 [[package]]
 name = "tree_hash_derive"
 version = "0.8.0"
diff --git a/bolt-sidecar/Cargo.toml b/bolt-sidecar/Cargo.toml
index 5ec25c6f..c33cff1b 100644
--- a/bolt-sidecar/Cargo.toml
+++ b/bolt-sidecar/Cargo.toml
@@ -22,7 +22,7 @@ tokio-retry = "0.3.0"
 
 # crypto
 blst = "0.3.12"
-tree_hash = "0.8"
+tree_hash = "0.9"
 tree_hash_derive = "0.8"
 secp256k1 = { version = "0.29.0", features = ["rand"] }
 ssz_rs = { git = "https://github.com/ralexstokes/ssz-rs", rev = "ec3073e" }