diff --git a/internal/statesync/reactor.go b/internal/statesync/reactor.go
index 26ddf1809..1e35c1c3a 100644
--- a/internal/statesync/reactor.go
+++ b/internal/statesync/reactor.go
@@ -41,7 +41,7 @@ var (
 				Priority:            6,
 				SendQueueCapacity:   10,
 				RecvMessageCapacity: snapshotMsgSize,
-				RecvBufferCapacity:  4096,
+				RecvBufferCapacity:  128,
 				MaxSendBytes:        400,
 			},
 		},
@@ -52,7 +52,7 @@ var (
 				Priority:            3,
 				SendQueueCapacity:   4,
 				RecvMessageCapacity: chunkMsgSize,
-				RecvBufferCapacity:  4096,
+				RecvBufferCapacity:  128,
 				MaxSendBytes:        400,
 			},
 		},
@@ -63,7 +63,7 @@ var (
 				Priority:            2,
 				SendQueueCapacity:   10,
 				RecvMessageCapacity: lightBlockMsgSize,
-				RecvBufferCapacity:  4096,
+				RecvBufferCapacity:  128,
 				MaxSendBytes:        400,
 			},
 		},