diff --git a/.travis.yml b/.travis.yml
index 1aae40fc64bb062fd5bc3b796f3363a23e710ff6..86e6d84edfbef6448f02e419cef90f0efd939319 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,7 @@
 install:
  - nix --version
  - travis_retry nix-channel --update
- - if [ -n "${CACHIX_CACHE}" ]; then nix-env -i cachix; fi
+ - if [ -n "${CACHIX_CACHE}" ]; then nix-env -if https://github.com/cachix/cachix/tarball/master --substituters https://cachix.cachix.org --trusted-public-keys cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM=; fi
  - if [ -n "${CACHIX_CACHE}" ]; then cachix use "${CACHIX_CACHE}"; fi
 
 script: