Add Erlang 19.0 to travis test matrix
diff --git a/.travis.yml b/.travis.yml
index f3af868..629003e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,8 @@
 notifications:
   email: false
 otp_release:
-  - 18.2.1
-  - 18.1
+  - 19.0
+  - 18.3
   - 17.5
   - R16B03-1
   - R15B03