diff --git a/build-constraints.yaml b/build-constraints.yaml
index 26a88851..3ab5242d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1211,6 +1211,10 @@ packages:
         - keycode
         - text-show
 
+    "Matthew Pickering <matthewtpickering@gmail.com> @mpickering":
+        - refact
+        - servant-pandoc
+
     "Stackage upper bounds":
         # https://github.com/fpco/stackage/issues/537
         - zlib < 0.6