diff --git a/.travis.yml b/.travis.yml
index b196c84..0673d8c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,28 @@
 language: go
-dist: trusty
+sudo: false
+dist: bionic
+osx_image: xcode11.2
 go:
   - 1.11.x
   - 1.12.x
+  - 1.13.x
+
+os:
+  - linux
+  - osx
+
+env:
+  GO111MODULE=on GOPROXY=https://proxy.golang.org
+
 addons:
   apt:
     packages:
       - zsh
+
 before_script:
   - go get github.com/sirupsen/logrus
   - go get github.com/stretchr/testify
-  - go get gopkg.in/urfave/cli.v2
+  - go get github.com/urfave/cli/v2
   - go get gopkg.in/yaml.v2
   - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin latest
 
diff --git a/cli.go b/cli.go
index ec237db..0486338 100644
--- a/cli.go
+++ b/cli.go
@@ -9,7 +9,7 @@ import (
 	"strings"
 
 	"github.com/sirupsen/logrus"
-	"gopkg.in/urfave/cli.v2"
+	"github.com/urfave/cli/v2"
 )
 
 func NewCLI() *cli.App {
@@ -22,6 +22,10 @@ func NewCLI() *cli.App {
 				Name:  "Dan Buch",
 				Email: "dan@meatballhat.com",
 			},
+			{
+				Name: "Ajitem Sahasrabuddhe",
+				Email: "ajitem.s@outlook.com",
+			},
 		},
 		Flags: []cli.Flag{
 			&cli.StringSliceFlag{
diff --git a/cmd/gfmrun/main_test.go b/cmd/gfmrun/main_test.go
index a8c5ab7..eca5845 100644
--- a/cmd/gfmrun/main_test.go
+++ b/cmd/gfmrun/main_test.go
@@ -4,7 +4,7 @@ import (
 	"os"
 	"testing"
 
-	"gopkg.in/urfave/cli.v2"
+	"github.com/urfave/cli/v2"
 )
 
 func TestMain(m *testing.M) {
diff --git a/go.mod b/go.mod
index aa670ef..cdd46b5 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,6 @@ go 1.11
 require (
 	github.com/sirupsen/logrus v1.4.2
 	github.com/stretchr/testify v1.2.2
-	gopkg.in/urfave/cli.v2 v2.0.0-20190806201727-b62605953717
+	github.com/urfave/cli/v2 v2.0.0
 	gopkg.in/yaml.v2 v2.2.2
 )
diff --git a/go.sum b/go.sum
index d2d6ed4..65eeda3 100644
--- a/go.sum
+++ b/go.sum
@@ -1,14 +1,24 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
+github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/urfave/cli v1.22.2 h1:gsqYFH8bb9ekPA12kRo0hfjngWQjkJPlN9R0N78BoUo=
+github.com/urfave/cli/v2 v2.0.0 h1:+HU9SCbu8GnEUFtIBfuUNXN39ofWViIEJIp6SURMpCg=
+github.com/urfave/cli/v2 v2.0.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894 h1:Cz4ceDQGXuKRnVBDTS23GTn/pU5OE2C0WrNTOYK1Uuc=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/package.go b/package.go
index 3dad22d..0211b48 100644
--- a/package.go
+++ b/package.go
@@ -6,7 +6,7 @@ import (
 	"os/user"
 	"path/filepath"
 
-	"gopkg.in/urfave/cli.v2"
+	"github.com/urfave/cli/v2"
 )
 
 var (
diff --git a/runnable.go b/runnable.go
index 52ffc4a..f78be0a 100644
--- a/runnable.go
+++ b/runnable.go
@@ -146,11 +146,11 @@ func (rn *Runnable) IsValidOS() bool {
 		return true
 	}
 
-	switch v.(type) {
+	switch val := v.(type) {
 	case string:
-		return runtime.GOOS == v.(string)
+		return runtime.GOOS == val
 	case []interface{}:
-		for _, s := range v.([]interface{}) {
+		for _, s := range val {
 			if runtime.GOOS == s.(string) {
 				return true
 			}