From 9c3ca47d2c63cd82c9bbc34d05d2abe8012443f4 Mon Sep 17 00:00:00 2001
From: Jens Petersen <petersen@redhat.com>
Date: Fri, 16 Feb 2018 18:54:55 +0900
Subject: [PATCH] hpack < 0.26.0 and cabal2nix < 2.8.2 (#3294)

---
 build-constraints.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4cb621d1..dc455bf8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3397,7 +3397,8 @@ packages:
 
         # https://github.com/fpco/stackage/issues/3294
         # https://github.com/commercialhaskell/stack/issues/3871
-        - hpack < 0.27.0
+        - hpack < 0.26.0
+        - cabal2nix < 2.8.2
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of