diff --git a/hbs2-peer/app/BlockDownloadNew.hs b/hbs2-peer/app/BlockDownloadNew.hs
index ee9aa6f2..a08e3bd5 100644
--- a/hbs2-peer/app/BlockDownloadNew.hs
+++ b/hbs2-peer/app/BlockDownloadNew.hs
@@ -661,7 +661,7 @@ downloadDispatcher brains env = flip runContT pure do
                          Just s -> pure s
                          Nothing -> do
                           -- TODO: semaphore-hardcode
-                          new <- TSem.newTSem 10
+                          new <- TSem.newTSem 50
                           modifyTVar _psem (HM.insert nonce new)
                           pure new