From 09cd105671486f1704f1cf5b7d2c1d1f68142a31 Mon Sep 17 00:00:00 2001
From: Emma Jamieson-Hoare <emmajam@users.noreply.github.com>
Date: Wed, 11 Feb 2026 18:50:56 -0500
Subject: [PATCH] fix(primitives): move feature-referenced deps from
 dev-dependencies to optional dependencies (#22103)

Co-authored-by: Amp <amp@ampcode.com>
---
 .changelog/nice-waves-bow.md |  5 +++++
 crates/primitives/Cargo.toml |  9 +++++----
 crates/primitives/src/lib.rs | 12 ++++++++++++
 3 files changed, 22 insertions(+), 4 deletions(-)
 create mode 100644 .changelog/nice-waves-bow.md

diff --git a/.changelog/nice-waves-bow.md b/.changelog/nice-waves-bow.md
new file mode 100644
index 0000000000..d19df67eca
--- /dev/null
+++ b/.changelog/nice-waves-bow.md
@@ -0,0 +1,5 @@
+---
+reth-primitives: patch
+---
+
+Moved feature-referenced dependencies from dev-dependencies to optional dependencies to ensure they are available when their corresponding features are enabled.
diff --git a/crates/primitives/Cargo.toml b/crates/primitives/Cargo.toml
index 1717cc6ec3..22da1575d9 100644
--- a/crates/primitives/Cargo.toml
+++ b/crates/primitives/Cargo.toml
@@ -20,27 +20,28 @@ reth-static-file-types.workspace = true
 
 # ethereum
 alloy-consensus.workspace = true
+alloy-primitives = { workspace = true, optional = true }
+alloy-rlp = { workspace = true, optional = true }
+alloy-eips = { workspace = true, optional = true }
+alloy-genesis = { workspace = true, optional = true }
 
 # for eip-4844
 c-kzg = { workspace = true, features = ["serde"], optional = true }
 
 # misc
 once_cell.workspace = true
+reth-codecs = { workspace = true, optional = true }
 
 [dev-dependencies]
 # eth
 reth-primitives-traits = { workspace = true, features = ["arbitrary", "test-utils"] }
 
-alloy-primitives.workspace = true
-alloy-rlp.workspace = true
 alloy-eips = { workspace = true, features = ["arbitrary"] }
-alloy-genesis.workspace = true
 
 arbitrary = { workspace = true, features = ["derive"] }
 
 proptest-arbitrary-interop.workspace = true
 proptest.workspace = true
-reth-codecs.workspace = true
 
 criterion.workspace = true
 
diff --git a/crates/primitives/src/lib.rs b/crates/primitives/src/lib.rs
index 9d4d6da235..d30daa551e 100644
--- a/crates/primitives/src/lib.rs
+++ b/crates/primitives/src/lib.rs
@@ -18,6 +18,18 @@
 #![cfg_attr(docsrs, feature(doc_cfg))]
 #![cfg_attr(not(feature = "std"), no_std)]
 
+// These are used as optional dependencies solely for feature forwarding.
+#[cfg(feature = "alloy-eips")]
+use alloy_eips as _;
+#[cfg(feature = "alloy-genesis")]
+use alloy_genesis as _;
+#[cfg(feature = "alloy-primitives")]
+use alloy_primitives as _;
+#[cfg(feature = "alloy-rlp")]
+use alloy_rlp as _;
+#[cfg(feature = "reth-codecs")]
+use reth_codecs as _;
+
 mod block;
 mod receipt;
 pub use reth_static_file_types as static_file;