diff --git a/spring-cassandra/src/test/resources/cassandra.yaml b/spring-cassandra/src/test/resources/cassandra.yaml
index 82fcfc5ad..8fc6462aa 100644
--- a/spring-cassandra/src/test/resources/cassandra.yaml
+++ b/spring-cassandra/src/test/resources/cassandra.yaml
@@ -339,7 +339,7 @@ native_transport_port: 9042
 # transport is used. They are similar to rpc_min_threads and rpc_max_threads,
 # though the defaults differ slightly.
 # native_transport_min_threads: 16
-# native_transport_max_threads: 128
+native_transport_max_threads: 64
 
 # Whether to start the thrift rpc server.
 start_rpc: true