diff --git a/build-constraints.yaml b/build-constraints.yaml
index be505a39..0471e45b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8459,6 +8459,7 @@ expected-test-failures:
     - foldl-statistics # https://github.com/data61/foldl-statistics/issues/2
     - fsnotify # Often runs out of inotify handles
     - hastache
+    - hedn # 0.3.0.4
     - idris # https://github.com/fpco/stackage/issues/1382
     - ihaskell # https://github.com/gibiansky/IHaskell/issues/551
     - math-functions # https://github.com/bos/math-functions/issues/25