diff --git a/book/run/optimism.md b/book/run/optimism.md
index a44d0b603..b16a7e4b9 100644
--- a/book/run/optimism.md
+++ b/book/run/optimism.md
@@ -101,7 +101,7 @@ op-node \
 [l1-el-spec]: https://github.com/ethereum/execution-specs
 [rollup-node-spec]: https://github.com/ethereum-optimism/specs/blob/main/specs/protocol/rollup-node.md
 [op-geth-forkdiff]: https://op-geth.optimism.io
-[sequencer]: https://github.com/ethereum-optimism/specs/blob/main/specs/introduction.md#sequencers
+[sequencer]: https://github.com/ethereum-optimism/specs/blob/main/specs/background.md#sequencers
 [op-stack-spec]: https://github.com/ethereum-optimism/specs/blob/main/specs
 [l2-el-spec]: https://github.com/ethereum-optimism/specs/blob/main/specs/protocol/exec-engine.md
 [deposit-spec]: https://github.com/ethereum-optimism/specs/blob/main/specs/protocol/deposits.md
diff --git a/docs/repo/layout.md b/docs/repo/layout.md
index c3c53321f..552da3196 100644
--- a/docs/repo/layout.md
+++ b/docs/repo/layout.md
@@ -137,11 +137,9 @@ Crates related to building and validating payloads (blocks).
 
 ### Primitives
 
-These crates define primitive types or algorithms such as RLP.
+These crates define primitive types or algorithms.
 
 - [`primitives`](../../crates/primitives): Commonly used types in Reth.
-- [`rlp`](../../crates/rlp): An implementation of RLP, forked from an earlier Apache-licensed version of [`fastrlp`][fastrlp]
-- [`rlp/rlp-derive`](../../crates/rlp/rlp-derive): Forked from an earlier Apache licenced version of the [`fastrlp-derive`][fastrlp-derive] crate, before it changed licence to GPL.
 - [`trie`](../../crates/trie): An implementation of a Merkle Patricia Trie used for various roots (e.g. the state root) in Ethereum.
 
 ### Misc
@@ -154,8 +152,6 @@ Small utility crates.
 - [`metrics/metrics-derive`](../../crates/metrics/metrics-derive): A derive-style API for creating metrics
 - [`tracing`](../../crates/tracing): A small utility crate to install a uniform [`tracing`][tracing] subscriber
 
-[fastrlp]: https://crates.io/crates/fastrlp
-[fastrlp-derive]: https://crates.io/crates/fastrlp-derive
 [libmdbx-rs]: https://crates.io/crates/libmdbx
 [discv4]: https://github.com/ethereum/devp2p/blob/master/discv4.md
 [jsonrpsee]: https://github.com/paritytech/jsonrpsee/