diff --git a/.travis.yml b/.travis.yml
index 10040d4..ef44c1d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: elixir
 elixir:
-  - 1.2.3
+  - 1.3.4
 otp_release:
   - 18.2.1
 env: