diff --git a/build-constraints.yaml b/build-constraints.yaml
index f7242cfc..5eca17b8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -425,6 +425,10 @@ packages:
     "Trevor L. McDonell <tmcdonell@cse.unsw.edu.au>":
         - accelerate
 
+    "Liam O'Connor <liamoc@cse.unsw.edu.au>":
+        - patches-vector
+        - composition-tree
+
     "Dan Burton <danburton.email@gmail.com> @DanBurton":
         - hspec-jenkins
         - yesod-gitrev