diff --git a/build-constraints.yaml b/build-constraints.yaml
index d3806a50..7252d6f5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3299,9 +3299,6 @@ packages:
         - brick < 0.21
         - word-wrap < 0.2
 
-        # https://github.com/fpco/stackage/issues/2730
-        - req < 0.4
-
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of