diff --git a/build-constraints.yaml b/build-constraints.yaml
index 784bbb49..19af132a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -277,7 +277,8 @@ packages:
         #- compensated GHC 7.10
         - compressed
         - concurrent-supply
-        - constraints
+        # https://github.com/fpco/stackage/issues/973
+        - constraints < 0.6
         - contravariant
         - distributive
         - either
@@ -1712,9 +1713,6 @@ packages:
         # https://github.com/fpco/stackage/issues/968
         - bifunctors < 5.1
 
-        # https://github.com/fpco/stackage/issues/973
-        - constraints < 0.6
-
 # end of packages