diff --git a/editorconfig/check_command.go b/editorconfig/check_command.go
index 0e894da..71cc167 100644
--- a/editorconfig/check_command.go
+++ b/editorconfig/check_command.go
@@ -2,10 +2,11 @@ package editorconfig
 
 import (
 	"fmt"
-	"github.com/codegangsta/cli"
 	"os"
 	"strconv"
 	"strings"
+
+	"github.com/urfave/cli"
 )
 
 func CheckCommand(c *cli.Context) error {
diff --git a/editorconfig/cli.go b/editorconfig/cli.go
index c893225..4a5b642 100644
--- a/editorconfig/cli.go
+++ b/editorconfig/cli.go
@@ -1,7 +1,7 @@
 package editorconfig
 
 import (
-	"github.com/codegangsta/cli"
+	"github.com/urfave/cli"
 )
 
 func CreateCliApp() *cli.App {
diff --git a/editorconfig/fix_command.go b/editorconfig/fix_command.go
index 1fa65bd..53753e4 100644
--- a/editorconfig/fix_command.go
+++ b/editorconfig/fix_command.go
@@ -2,10 +2,11 @@ package editorconfig
 
 import (
 	"fmt"
-	"github.com/codegangsta/cli"
 	"os"
 	"strconv"
 	"strings"
+
+	"github.com/urfave/cli"
 )
 
 func FixCommand(c *cli.Context) error {
diff --git a/editorconfig/ls_command.go b/editorconfig/ls_command.go
index c53044e..d772664 100644
--- a/editorconfig/ls_command.go
+++ b/editorconfig/ls_command.go
@@ -2,9 +2,10 @@ package editorconfig
 
 import (
 	"fmt"
-	"github.com/codegangsta/cli"
 	"strconv"
 	"strings"
+
+	"github.com/urfave/cli"
 )
 
 func LsCommand(c *cli.Context) error {
diff --git a/editorconfig/rules_command.go b/editorconfig/rules_command.go
index 2b6cf92..06eeaf2 100644
--- a/editorconfig/rules_command.go
+++ b/editorconfig/rules_command.go
@@ -2,7 +2,8 @@ package editorconfig
 
 import (
 	"fmt"
-	"github.com/codegangsta/cli"
+
+	"github.com/urfave/cli"
 )
 
 func RulesCommand(c *cli.Context) error {
diff --git a/editorconfig/source_file_finder.go b/editorconfig/source_file_finder.go
index 090d192..5e24ae1 100644
--- a/editorconfig/source_file_finder.go
+++ b/editorconfig/source_file_finder.go
@@ -2,11 +2,12 @@ package editorconfig
 
 import (
 	"bytes"
-	"github.com/codegangsta/cli"
 	"os"
 	"path/filepath"
 	"regexp"
 	"strings"
+
+	"github.com/urfave/cli"
 )
 
 var containsDotDirectoryRegex = regexp.MustCompile(`(^|/)\.[^/]+/`)
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..725789b
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,9 @@
+module github.com/amyboyd/editorconfig-cli
+
+go 1.15
+
+require (
+	github.com/go-ini/ini v1.62.0
+	github.com/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca
+	github.com/urfave/cli v1.22.5
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..e8a9a45
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,16 @@
+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/go-ini/ini v1.62.0 h1:7VJT/ZXjzqSrvtraFp4ONq80hTcRQth1c9ZnQ3uNQvU=
+github.com/go-ini/ini v1.62.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
+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/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca h1:NugYot0LIVPxTvN8n+Kvkn6TrbMyxQiuvKdEwFdR9vI=
+github.com/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca/go.mod h1:uugorj2VCxiV1x+LzaIdVa9b4S4qGAcH6cbhh4qVxOU=
+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/urfave/cli v1.22.5 h1:lNq9sAHXK2qfdI8W+GRItjCEkI+2oR4d+MEHy1CKXoU=
+github.com/urfave/cli v1.22.5/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/main.go b/main.go
index 93de5cb..4b92715 100644
--- a/main.go
+++ b/main.go
@@ -1,8 +1,9 @@
 package main
 
 import (
-	"github.com/amyboyd/editorconfig-cli/editorconfig"
 	"os"
+
+	"github.com/amyboyd/editorconfig-cli/editorconfig"
 )
 
 func main() {