diff --git a/.travis.yml b/.travis.yml
index d124434..c8accca 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,9 +8,4 @@ before_script:
   - mkdir -p ~/.config/nixpkgs
 
 script:
-  - nix-build ./release.nix -A backend
-
-
-cache:
-  directories:
-  - nix
+  - nix-build ./release.nix -A backend --option trusted-public-keys "masser-ebook-manager.cachix.org-1:mtFSkQ2MO5MvjUpulZoFKjKUIa8g8CTcdPVuJaPKS1w= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" --option binary-caches "https://cache.nixos.org https://masser-ebook-manager.cachix.org"