diff --git a/build-constraints.yaml b/build-constraints.yaml
index d2105364..a3c6f2b4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7839,6 +7839,12 @@ expected-test-failures:
     # https://github.com/unrelentingtech/hspec-expectations-pretty-diff/issues/7
     - hspec-expectations-pretty-diff
 
+    # https://github.com/commercialhaskell/stackage/issues/5918
+    - hakyll-convert
+
+    # https://github.com/commercialhaskell/stackage/issues/5919
+    - hledger-iadd
+
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run