diff --git a/Cargo.toml b/Cargo.toml
index 16a9627..e817be6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -78,7 +78,7 @@ serde = { version = "1", optional = true, default-features = false }
 valuable = { version = "0.1", optional = true, default-features = false }
 zeroize = { version = "1.6", optional = true, default-features = false }
 bytemuck = { version = "1.13.1", optional = true, default-features = false }
-ethereum_ssz = { version = "0.5.3", optional = true, default-features = false }
+ethereum_ssz = { version = "0.9.0", optional = true, default-features = false }
 der = { version = "0.7", optional = true, default-features = false, features = [
     "alloc",
 ] }