diff --git a/build-constraints.yaml b/build-constraints.yaml
index d1f092c3..a404c23f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8094,6 +8094,7 @@ expected-test-failures:
     - AvlTree # 4.3: AvlTree-tests:  executable not found
     - lsfrom # "test: lsfrom does not exist (No such file or directory)" for 9.12.4 bootstrap
     - pandoc # missing files for 9.12.4 bootstrap
+    - xlsx # 1.2.0: data-test:  executable not found for 9.12.4 bootstrap
 
     # Consistent test failures
     - ANum # executable not found, https://github.com/commercialhaskell/stackage/issues/7809