diff --git a/crates/rpc/rpc/Cargo.toml b/crates/rpc/rpc/Cargo.toml
index 733f218a1a..5c2ebaa235 100644
--- a/crates/rpc/rpc/Cargo.toml
+++ b/crates/rpc/rpc/Cargo.toml
@@ -54,7 +54,6 @@ http-body.workspace = true
 hyper.workspace = true
 jsonwebtoken.workspace = true
 serde_json.workspace = true
-jsonrpsee-types = { workspace = true, optional = true }
 
 # async
 async-trait.workspace = true
@@ -91,6 +90,5 @@ optimism = [
     "reth-provider/optimism",
     "reth-rpc-eth-api/optimism",
     "reth-revm/optimism",
-    "jsonrpsee-types",
     "reth-rpc-eth-types/optimism",
 ]
diff --git a/crates/rpc/rpc/src/eth/helpers/mod.rs b/crates/rpc/rpc/src/eth/helpers/mod.rs
index 175d72c764..f0a0cccb55 100644
--- a/crates/rpc/rpc/src/eth/helpers/mod.rs
+++ b/crates/rpc/rpc/src/eth/helpers/mod.rs
@@ -6,8 +6,6 @@ pub mod signer;
 mod block;
 mod call;
 mod fees;
-#[cfg(feature = "optimism")]
-pub mod optimism;
 mod pending_block;
 mod receipt;
 mod spec;
diff --git a/crates/rpc/rpc/src/eth/helpers/optimism.rs b/crates/rpc/rpc/src/eth/helpers/optimism.rs
deleted file mode 100644
index 03d45dbe47..0000000000
--- a/crates/rpc/rpc/src/eth/helpers/optimism.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-//! Loads and formats OP transaction RPC response.   
-
-use jsonrpsee_types::error::ErrorObject;
-use reth_rpc_eth_types::EthApiError;
-use reth_rpc_server_types::result::internal_rpc_err;
-use reth_rpc_types::ToRpcError;
-
-/// Optimism specific errors, that extend [`EthApiError`].
-#[derive(Debug, thiserror::Error)]
-pub enum OptimismEthApiError {
-    /// Thrown when calculating L1 gas fee.
-    #[error("failed to calculate l1 gas fee")]
-    L1BlockFeeError,
-    /// Thrown when calculating L1 gas used
-    #[error("failed to calculate l1 gas used")]
-    L1BlockGasError,
-}
-
-impl ToRpcError for OptimismEthApiError {
-    fn to_rpc_error(&self) -> ErrorObject<'static> {
-        match self {
-            Self::L1BlockFeeError | Self::L1BlockGasError => internal_rpc_err(self.to_string()),
-        }
-    }
-}
-
-impl From<OptimismEthApiError> for EthApiError {
-    fn from(err: OptimismEthApiError) -> Self {
-        Self::other(err)
-    }
-}