diff --git a/.travis.yml b/.travis.yml
index 6d8baf5..e627c6b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,11 @@
 language: elixir
 elixir:
-  - 1.5.0
+  - 1.9.4
 notifications:
   recipients:
     - theavitex@gmail.com
 otp_release:
-  - 18.2
+  - 22.1
 env:
   - MIX_ENV=test
 script:
diff --git a/mix.exs b/mix.exs
index 426ef03..c88fd6a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -9,7 +9,7 @@ defmodule Glicko.Mixfile do
     do: [
       app: :glicko,
       version: "0.6.0",
-      elixir: "~> 1.5",
+      elixir: "~> 1.9",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       package: package(),