1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/src/util/zlib/ZOutputStream.cs b/crypto/src/util/zlib/ZOutputStream.cs
index 1633b2d8f..a1482a07f 100644
--- a/crypto/src/util/zlib/ZOutputStream.cs
+++ b/crypto/src/util/zlib/ZOutputStream.cs
@@ -49,7 +49,7 @@ namespace Org.BouncyCastle.Utilities.Zlib
             return z;
         }
 
-        private const int BufferSize = 512;
+        private const int BufferSize = 4096;
 
 		protected ZStream z;
 		protected int flushLevel = JZlib.Z_NO_FLUSH;