diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6cc0fd0f..0c06bb19 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7766,7 +7766,6 @@ expected-test-failures:
     - greskell
     - greskell-core
     - headroom
-    - heterocephalus # https://github.com/commercialhaskell/stackage/issues/6464
     - hint
     - hledger-lib
     - iproute