diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
index 78de4d8499b9..84cf5ac6d72d 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -783,4 +783,7 @@ self: super: {
   # https://github.com/bitemyapp/esqueleto/issues/77
   esqueleto = markBrokenVersion "2.5.3" super.esqueleto;
 
+  # Older versions don't compile.
+  hackage-db = super.hackage-db_2_0_1;
+
 }