diff --git a/build-constraints.yaml b/build-constraints.yaml
index 28b053ed..f22bd3a4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7487,6 +7487,7 @@ expected-test-failures:
     - hsc2hs
     - hsini
     - htoml
+    - krank # https://github.com/guibou/krank/issues/90
     - leveldb-haskell
     - mono-traversable
     - multiarg