From d5c86cddeee937d31fbfcc7f6486e2c4c15a5b02 Mon Sep 17 00:00:00 2001
From: Mats Rauhala <mats.rauhala@iki.fi>
Date: Thu, 21 Mar 2019 22:27:26 +0200
Subject: [PATCH] Enable unstable tests

---
 .travis.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 0e441c3..4d32783 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,8 @@ matrix:
     - NIXPKGS=https://github.com/NixOS/nixpkgs-channels/archive/nixos-18.09.tar.gz
   - env:
     - NIXPKGS=https://github.com/NixOS/nixpkgs-channels/archive/nixos-19.03.tar.gz
+  - env:
+    - NIXPKGS=https://github.com/NixOS/nixpkgs-channels/archive/nixos-unstable.tar.gz
 
 script:
   - nix run nixpkgs.haskellPackages.hlint -c hlint src