diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4b3ab1d5..1155a050 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1027,6 +1027,11 @@ packages:
         - uri-templater
         - librato
         
+    "Michael Xavier <michael@michaelxavier.net> @MichaelXavier":
+        - angel
+        - uri-bytestring
+        - phash
+        - cron
     "Stackage upper bounds":
         # https://github.com/fpco/stackage/issues/537
         - zlib < 0.6