Travis: use Erlang 21.3, Elixir 1.8.1

michaelklishin · michaelklishin · commit dc71205446d4 · 2019-03-20T10:33:15.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -22,7 +22,7 @@ env:
 
 otp_release:
   - "20.3"
-  - "21.2"
+  - "21.3"
 
 before_script:
   - elixir --version
