diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6eed819a9..6f4a26b0b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9423,6 +9423,7 @@ expected-test-failures:
     - persistent # https://github.com/commercialhaskell/stackage/issues/6037
     - reanimate-svg # https://github.com/commercialhaskell/stackage/issues/5688
     - rzk
+    - sequence-formats # https://github.com/commercialhaskell/stackage/issues/7501
 
     # Testcase failures, or other runtime failures.
     # These can be real testsuite bugs, or maybe limitations in test cases or the test setup.