diff --git a/consensus/src/rpc/mod.rs b/consensus/src/rpc/mod.rs
index c478f67..bbba651 100644
--- a/consensus/src/rpc/mod.rs
+++ b/consensus/src/rpc/mod.rs
@@ -9,7 +9,7 @@ use crate::types::{BeaconBlock, Bootstrap, FinalityUpdate, OptimisticUpdate, Upd
 // implements https://github.com/ethereum/beacon-APIs/tree/master/apis/beacon/light_client
 #[cfg_attr(not(target_arch = "wasm32"), async_trait)]
 #[cfg_attr(target_arch = "wasm32", async_trait(?Send))]
-pub trait ConsensusNetworkInterface {
+pub trait ConsensusNetworkInterface: Sync + Send + 'static {
     fn new(path: &str) -> Self;
     async fn get_bootstrap(&self, block_root: &'_ [u8]) -> Result<Bootstrap>;
     async fn get_updates(&self, period: u64, count: u8) -> Result<Vec<Update>>;