diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1c1f0fee..66507d24 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8717,6 +8717,7 @@ expected-test-failures:
     - conduit-aeson # https://github.com/commercialhaskell/stackage/issues/6469
     - conduit-connection # 0.1.0.5
     - cryptohash # 0.11.9 Stack builds test and benchmarks in one pass so benchmark could prevent tests from getting built
+    - crypton-x509 # 1.7.6 https://github.com/kazu-yamamoto/crypton-certificate/issues/1
     - data-diverse # 4.7.0.0
     - deriveJsonNoPrefix # 0.1.0.1 compile fail against aeson 2
     - do-notation # 0.1.0.2