diff --git a/.travis.yml b/.travis.yml

index 6efb199511ad200a87cfc50d636caa0cee4c60fe..be8d87e1cabe3a43bbb13b1b03e82332889a86de 100644

--- a/.travis.yml

+++ b/.travis.yml

@@ -1,6 +1,8 @@

language: nix

nix: 2.3.6

+sudo: yes

env:

global:

 - CACHIX_CACHE=sikmir

@@ -11,6 +13,10 @@ include:

 - env: NIX_CHANNEL=https://nixos.org/channels/nixpkgs-unstable

 - env: NIX_CHANNEL=https://nixos.org/channels/nixos-unstable

 - env: NIX_CHANNEL=https://nixos.org/channels/nixos-20.03

+before_install:

• • sudo mkdir -p /etc/nix

• • echo "trusted-users = root $USER" | sudo tee -a /etc/nix/nix.conf

install:

• nix --version