diff --git a/build-constraints.yaml b/build-constraints.yaml
index fcbe5953..9951ecdf 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -294,7 +294,7 @@ packages:
     "Michael Snoyman michael@snoyman.com @snoyberg":
         - bzlib-conduit
         - cabal-install
-        # - mega-sdist  # https://github.com/snoyberg/mega-sdist/issues/4
+        - mega-sdist
         - case-insensitive
         - classy-prelude-yesod
         - conduit-combinators