diff --git a/build-constraints.yaml b/build-constraints.yaml
index fb531edc..65a352ac 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6096,6 +6096,8 @@ skipped-tests:
     - envelope # https://github.com/commercialhaskell/stackage/issues/4669
     - algebraic-graphs # https://github.com/commercialhaskell/stackage/issues/4670
     - bugsnag-haskell # https://github.com/commercialhaskell/stackage/issues/4759
+    - genvalidity-hspec-cereal # https://github.com/commercialhaskell/stackage/issues/4909
+    - genvalidity-hspec-optics # https://github.com/commercialhaskell/stackage/issues/4910
 # end of skipped-tests
 
 # Tests listed in expected-test-failures configure correctly but may fail to run