diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3632a287..092315e1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7282,6 +7282,11 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/6672
         - Cabal-syntax < 3.8.1
 
+        # https://github.com/commercialhaskell/stackage/issues/6756
+        # https://github.com/commercialhaskell/stackage/issues/6686
+        # https://github.com/commercialhaskell/stackage/issues/6672
+        - ormolu < 0.5.1
+
         # https://github.com/commercialhaskell/stackage/issues/6673
         - ghc-syntax-highlighter < 0.0.9