--- a/vendor/github.com/spf13/viper/.travis.yml	Wed Sep 18 19:17:42 2019 +0200
+++ b/vendor/github.com/spf13/viper/.travis.yml	Sun Feb 16 18:54:01 2020 +0100
@@ -1,9 +1,16 @@
 go_import_path: github.com/spf13/viper
 
 language: go
+
+env:
+  global:
+    - GO111MODULE="on"
+    - GOFLAGS="-mod=readonly"
+
 go:
-  - 1.10.x
   - 1.11.x
+  - 1.12.x
+  - 1.13.x
   - tip
 
 os:
@@ -23,5 +30,3 @@
 after_success:
   - go get -u -d github.com/spf13/hugo
   - cd $GOPATH/src/github.com/spf13/hugo && make && ./hugo -s docs && cd -
-
-sudo: false