diff --git a/.travis.yml b/.travis.yml
index e139690..ca790e9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,10 +9,12 @@ matrix:
       elixir: 1.8
     - otp_release: 20.0
       elixir: 1.9
-    - otp_release: 21.0
-      elixir: 1.9
     - otp_release: 22.0
       elixir: 1.9
+    - otp_release: 21.0
+      elixir: 1.10
+    - otp_release: 22.0
+      elixir: 1.10
 sudo: false
 after_script:
   - MIX_ENV=docs mix deps.get