diff --git a/build-constraints.yaml b/build-constraints.yaml
index 584a469e..293071e5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3167,6 +3167,9 @@ packages:
         - megaparsec < 6.4
         - mmark < 0.0.4.1
 
+        # https://github.com/fpco/stackage/issues/3154
+        - entropy < 0.4
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of