diff --git a/src/main/java/net/foxopen/fox/download/ThreadDownloadManager.java b/src/main/java/net/foxopen/fox/download/ThreadDownloadManager.java
index 890e212..748cba4 100644
--- a/src/main/java/net/foxopen/fox/download/ThreadDownloadManager.java
+++ b/src/main/java/net/foxopen/fox/download/ThreadDownloadManager.java
@@ -27,7 +27,7 @@
 public class ThreadDownloadManager
 implements DownloadManager {
 
-  private static final int PARCEL_CACHE_MAX_SIZE = 30;
+  private static final int PARCEL_CACHE_MAX_SIZE = 50;
   private static final Iterator<String> gUniqueIterator = XFUtil.getUniqueIterator();
 
   private final StatefulXThread mXThread;