diff --git a/build-constraints.yaml b/build-constraints.yaml
index d7cfd79e..0733250f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2473,6 +2473,9 @@ expected-haddock-failures:
     # https://github.com/ekmett/bifunctors/issues/42
     - bifunctors
 
+    # https://github.com/fpco/stackage/issues/1209
+    - hsdev
+
 # end of expected-haddock-failures