try latest go version to find dependency

nicpottier · nicpottier · commit f1bedb35e484 · 2019-09-18T06:54:30.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,7 +5,7 @@ env:
     - GO111MODULE=on
 
 go:
-  - "1.11"
+  - "1.13"
 
 deploy:
 - provider: script
