diff --git a/.golangci.yml b/.golangci.yml
index 5c659ad..b9ff4fd 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -13,3 +13,4 @@ issues:
     - path: _test\.go
       linters:
         - dupl
+        - funlen
diff --git a/.travis.yml b/.travis.yml
index d388861..02adfa6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,12 +4,13 @@ language: go
 go:
   - 1.11.x
   - 1.12.x
+  - 1.13.x
 
 before_install:
-  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.16.0
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.18.0
 
 before_script:
-  - golangci-lint run
+  - golangci-lint run ./...
 
 script:
   - go test -covermode=atomic -coverprofile=coverage.txt