diff --git a/local-cluster/tests/common.rs b/local-cluster/tests/common.rs
index b96ccc475..ba594af9f 100644
--- a/local-cluster/tests/common.rs
+++ b/local-cluster/tests/common.rs
@@ -320,6 +320,7 @@ pub fn run_cluster_partition<C>(
         skip_warmup_slots: true,
         additional_accounts,
         ticks_per_slot: ticks_per_slot.unwrap_or(DEFAULT_TICKS_PER_SLOT),
+        tpu_connection_pool_size: 2,
         ..ClusterConfig::default()
     };