diff --git a/build-constraints.yaml b/build-constraints.yaml
index fe937765..7d610052 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2484,6 +2484,9 @@ expected-haddock-failures:
     # https://github.com/wereHamster/avers-api/issues/2
     - avers-api
 
+    # https://github.com/fpco/stackage/issues/1209
+    - hsdev
+
 # end of expected-haddock-failures