diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 8921a7201708..16f9dfef9e68 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -919,13 +919,6 @@ with haskellLib;
   katt = dontCheck super.katt;
   language-slice = dontCheck super.language-slice;
 
-  # Bogus lower bound on data-default-class added via Hackage revision
-  # https://github.com/mrkkrp/req/pull/180#issuecomment-2628201485
-  req = overrideCabal {
-    revision = null;
-    editedCabalFile = null;
-  } super.req;
-
   # Group of libraries by same upstream maintainer for interacting with
   # Telegram messenger. Bit-rotted a bit since 2020.
   tdlib = appendPatch (fetchpatch {