diff --git a/build-constraints.yaml b/build-constraints.yaml
index c9661c77..bba307a4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3753,7 +3753,7 @@ packages:
         - language-docker
         - docker-build-cacher < 0 # GHC 8.4 via turtle
         - mysql-haskell-nem < 0 # via io-streams
-        - hadolint
+        - hadolint < 0 # via megaparsec-9.0.1 https://github.com/commercialhaskell/stackage/issues/5729
 
     "Phil Ruffwind <rf@rufflewind.com> @Rufflewind":
         - blas-hs < 0 # MonadFail