diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8a6527f7..83be0317 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -943,6 +943,9 @@ expected-test-failures:
     # https://github.com/kazu-yamamoto/unix-time/issues/29
     - unix-time
 
+    # Tests can fail when the build plan fails, which happens arbitrarily.
+    - stackage
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4