diff --git a/build-constraints.yaml b/build-constraints.yaml
index 51817860..c0fce96d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4080,6 +4080,7 @@ expected-test-failures:
     - tibetan-utils # https://github.com/vmchale/tibetan-utils/issues/1
     - haskell-tools-builtin-refactorings
     - squeal-postgresql # https://github.com/fpco/stackage/issues/3180
+    - hoopl # https://github.com/haskell/hoopl/issues/50
 
     # Stackage upper bounds, re-enable these when their upper bound is removed