diff --git a/build-constraints.yaml b/build-constraints.yaml
index 41b278c2..1001f4dd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3348,6 +3348,7 @@ skipped-tests:
     - language-ecmascript
     - lifted-base
     - parsec
+    - partial-order # https://github.com/mtesseract/haskell-partial-order/issues/1
     - rank1dynamic
     - threads
     - tz