diff --git a/.travis.yml b/.travis.yml
index 4d32783..983b577 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,8 +9,6 @@ before_script:
 
 matrix:
   include:
-  - env:
-    - 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: