diff --git a/build-constraints.yaml b/build-constraints.yaml
index b0432f1a..7c366b20 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3391,7 +3391,6 @@ packages:
         - envparse < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - fmt < 0 # DependencyFailed (PackageName "text-format")
         - getopt-generics < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
-        - ghc-typelits-natnormalise < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - ghcjs-base-stub < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - ginger < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
         - glob-posix < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build
@@ -3779,7 +3778,6 @@ packages:
         - classyplate < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - czipwith < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - data-accessor-template < 0 # GHC 8.4 via template-haskell-2.13.0.0
-        - ghc-typelits-knownnat < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - happstack-server < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - haskell-tools-ast < 0 # GHC 8.4 via template-haskell-2.13.0.0
         - haskell-tools-backend-ghc < 0 # GHC 8.4 via template-haskell-2.13.0.0
@@ -3842,7 +3840,6 @@ packages:
         - download < 0 # GHC 8.4 via feed
         - json-schema < 0 # GHC 8.4 via generic-aeson
         - hint < 0 # GHC 8.4 via ghc-8.4.1
-        - ghc-typelits-extra < 0 # GHC 8.4 via ghc-typelits-knownnat
         - hmatrix-backprop < 0 # GHC 8.4 via ghc-typelits-knownnat
         - hmatrix-vector-sized < 0 # GHC 8.4 via ghc-typelits-knownnat
         - stack < 0 # GHC 8.4 via hackage-security