diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
index cbea73043bd9..7cd010e22d9c 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
@@ -76,9 +76,6 @@ self: super: {
   # https://github.com/jgm/skylighting/issues/55
   skylighting-core = dontCheck super.skylighting-core;
 
-  # Break out of "yaml >=0.10.4.0 && <0.11": https://github.com/commercialhaskell/stack/issues/4485
-  stack = doJailbreak super.stack;
-
   # cabal2nix needs the latest version of Cabal, and the one
   # hackage-db uses must match, so take the latest
   cabal2nix = super.cabal2nix.overrideScope (self: super: { Cabal = self.Cabal_3_2_1_0; });