diff --git a/util/signature/buffer.go b/util/signature/buffer.go
index c2fa855..f9b003d 100644
--- a/util/signature/buffer.go
+++ b/util/signature/buffer.go
@@ -2,7 +2,7 @@ package signature
 
 import "sync"
 
-const poolSliceMaxSize = 64 * 1024
+const poolSliceMaxSize = 128 * 1024
 
 type buffer struct {
 	data []byte