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 d2b7f369fc8..9757b485fdd 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -662,9 +662,6 @@ self: super: {
       sha256 = "1wwdzrbsjqb7ih4nl28sq5bbj125mxf93a74yh4viv5gmxwj606a";
     });
 
-  # 1.3.0.0 does not compile.
-  conduit = self.conduit_1_3_0_1;
-
   # https://github.com/jgm/pandoc-types/issues/37
   pandoc-types = self.pandoc-types_1_17_4_2;