diff --git a/.changelog/vain-goats-cook.md b/.changelog/vain-goats-cook.md
index 59272c902c..a8dc4e7e94 100644
--- a/.changelog/vain-goats-cook.md
+++ b/.changelog/vain-goats-cook.md
@@ -6,4 +6,4 @@ reth-node-core: minor
 reth-trie-common: patch
 ---
 
-Added an arena-based sparse trie implementation (`ArenaParallelSparseTrie`) using `thunderdome` arena allocation for node storage, enabling parallel subtrie mutation without per-node hashing overhead. Added `ConfigurableSparseTrie` enum to switch between the arena and hash-map implementations, and a `--engine.enable-arena-sparse-trie` CLI flag to opt in at runtime.
+Added an arena-based sparse trie implementation (`ArenaParallelSparseTrie`) using `slotmap` arena allocation for node storage, enabling parallel subtrie mutation without per-node hashing overhead. Added `ConfigurableSparseTrie` enum to switch between the arena and hash-map implementations, and a `--engine.enable-arena-sparse-trie` CLI flag to opt in at runtime.
diff --git a/Cargo.toml b/Cargo.toml
index 2b5bb9399a..6779b9b429 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -546,7 +546,6 @@ strum = { version = "0.27", default-features = false }
 strum_macros = "0.27"
 syn = "2.0"
 thiserror = { version = "2.0.0", default-features = false }
-thunderdome = "0.6"
 tar = "0.4.44"
 tracing = { version = "0.1.0", default-features = false, features = ["attributes"] }
 tracing-appender = "0.2"