diff --git a/scripts/upload.hs b/scripts/upload.hs
index b44dee78..b03f251c 100755
--- a/scripts/upload.hs
+++ b/scripts/upload.hs
@@ -11,4 +11,4 @@ main :: IO ()
 main = do
   sources <- words <$> readFile "sources.txt"
   forM_ sources $ \ source -> do
-    callCommand ("stack upload " ++ source)
+    callCommand ("stack upload --no-signature " ++ source)