diff --git a/beacon_node/beacon_chain/test_harness/tests/chain.rs b/beacon_node/beacon_chain/test_harness/tests/chain.rs
index ece9bd3401..f841575331 100644
--- a/beacon_node/beacon_chain/test_harness/tests/chain.rs
+++ b/beacon_node/beacon_chain/test_harness/tests/chain.rs
@@ -24,7 +24,7 @@ fn it_can_build_on_genesis_block() {
 fn it_can_produce_past_first_epoch_boundary() {
     Builder::from_env(Env::default().default_filter_or("debug")).init();
 
-    let validator_count = 128 * 1024;
+    let validator_count = 100;
 
     debug!("Starting harness build...");