diff --git a/build-constraints.yaml b/build-constraints.yaml
index fa24ae1f..17775e70 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3956,9 +3956,6 @@ packages:
         # https://github.com/fpco/stackage/issues/3515
         - swagger2 < 2.2.2
 
-        # https://github.com/fpco/stackage/issues/3521
-        - massiv < 0.1.6
-
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of