From 1facbe37c68b8ad1867e678a565ea8dee3c218dd Mon Sep 17 00:00:00 2001
From: Ellie Hermaszewska <git@monoid.al>
Date: Fri, 21 Jan 2022 21:31:52 +0800
Subject: [PATCH] haskellPackages.hnix: pin at < 0.15

---
 .../haskell-modules/configuration-hackage2nix/main.yaml        | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index 4477e2f190a8..9f61e0fe4c4b 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -133,6 +133,9 @@ default-package-overrides:
   # Pinning patch because it is mainly used by the reflex-frp ecosystem which is not yet compatible with it.
   # https://github.com/reflex-frp/reflex-dom/issues/431
   - patch < 0.0.5.0
+  # On the recommendation of hnix author:
+  # https://github.com/NixOS/nixpkgs/pull/154461#issuecomment-1015511883
+  - hnix < 0.15
 
 extra-packages:
   - base16-bytestring < 1               # required for cabal-install etc.