From 61edd2991b71273a5f86e45d439d45c0701f80b4 Mon Sep 17 00:00:00 2001
From: Alexander Sosedkin <monk@unboiled.info>
Date: Fri, 12 Jun 2020 21:59:57 +0200
Subject: [PATCH] Fix Travis (by following @Gerschtli's advice)

https://github.com/t184256/nix-on-droid/issues/67#issuecomment-643451315
---
 .travis.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 5eccd42..b05e3ce 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,9 @@ env:
   global:
     - CACHIX_CACHE=nix-on-droid
 
+before_install:
+  - nix upgrade-nix
+
 install:
   - nix-env -iA cachix -f https://cachix.org/api/v1/install
   - cachix use "${CACHIX_CACHE}"