diff --git a/build-constraints.yaml b/build-constraints.yaml
index 02043706..de5719b3 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5698,7 +5698,6 @@ expected-test-failures:
     - doctest-discover # 0.1.0.9 https://github.com/karun012/doctest-discover/issues/22
     - doctest
     - reanimate-svg # https://github.com/commercialhaskell/stackage/issues/5688
-    - wai-saml2 # https://github.com/mbg/wai-saml2/issues/4
 
     # Assertion failures, these can be real bugs or just limitations
     # in the test cases.