diff --git a/build-constraints.yaml b/build-constraints.yaml
index ef9109be..c71d7d98 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6702,13 +6702,6 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/6122
       - mmorph < 1.2
 
-      # https://github.com/commercialhaskell/stackage/issues/6144
-      - scheduler < 2.0.0 # https://github.com/commercialhaskell/stackage/issues/6144
-      - massiv < 1.0.0.0
-      - massiv-io < 1.0.0.0
-      - massiv-persist < 1.0.0.0
-      - massiv-serialise < 1.0.0.0
-      - massiv-test < 1.0.0.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of