diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6fec7981..82bd73d5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -869,6 +869,9 @@ packages:
     "Sven Bartscher sven.bartscher@weltraumschlangen.de @kritzefitz":
         - setlocale
 
+    "Taylor Fausak <taylor@fausak.me> @tfausak":
+        - flow
+
     "Stackage upper bounds":
         # GHC 7.8 uppdate bound
         - haddock-api < 2.16