diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6dd64d49..58938eb9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2483,6 +2483,9 @@ skipped-tests:
     # Missing C library: symengine
     - symengine
 
+    # https://github.com/athanclark/rose-trees/pull/5
+    - rose-trees
+
 # end of skipped-tests
 
 # Tests which we should build and run, but which are expected to fail. We