diff --git a/build-constraints.yaml b/build-constraints.yaml
index d1aa3ad3..c817bbaf 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4091,6 +4091,7 @@ packages:
         - bytestring-builder
         - bytestring-strict-builder
         - bytestring-tree-builder
+        - byte-order
         - bzlib < 0 # via base-4.13.0.0
         - ca-province-codes
         - cabal-doctest
@@ -4325,6 +4326,7 @@ packages:
         - primes
         - primitive
         - primitive-extras
+        - primitive-unaligned
         - process-extras
         - product-isomorphic
         - project-template
@@ -5754,6 +5756,7 @@ skipped-benchmarks:
     - identicon # via criterion-1.5.0.0
     - pipes # optparse-applicative 0.13
     - psqueues # ghc 8.4 via PSQueue build failure
+    - scheduler # https://github.com/commercialhaskell/stackage/issues/4983
     - serialise
     - skylighting-core # via criterion-1.5.0.0
     - snap-server # via criterion-1.5.0.0