diff --git a/.travis.yml b/.travis.yml
index 8b3c9397f45127c6762baf4f6b15a088039334e8..33fc6388cf4e3a084d38d69cf71345a1b34fe5f1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,4 @@
 language: nix
-nix: 2.3.4
 
 sudo: false