diff --git a/p2p/host/peerstore/pstoreds/protobook.go b/p2p/host/peerstore/pstoreds/protobook.go
index 40fa7d951b..9ef7d1c9fa 100644
--- a/p2p/host/peerstore/pstoreds/protobook.go
+++ b/p2p/host/peerstore/pstoreds/protobook.go
@@ -48,7 +48,7 @@ func NewProtoBook(meta pstore.PeerMetadata, opts ...ProtoBookOption) (*dsProtoBo
 			}
 			return ret
 		}(),
-		maxProtos: 1024,
+		maxProtos: 128,
 	}
 
 	for _, opt := range opts {
diff --git a/p2p/host/peerstore/pstoremem/protobook.go b/p2p/host/peerstore/pstoremem/protobook.go
index e5bfae14f2..283dd105f9 100644
--- a/p2p/host/peerstore/pstoremem/protobook.go
+++ b/p2p/host/peerstore/pstoremem/protobook.go
@@ -51,7 +51,7 @@ func NewProtoBook(opts ...ProtoBookOption) (*memoryProtoBook, error) {
 			}
 			return ret
 		}(),
-		maxProtos: 1024,
+		maxProtos: 128,
 	}
 
 	for _, opt := range opts {