diff --git a/actions/update.go b/actions/update.go
index daeba96..6a775e6 100644
--- a/actions/update.go
+++ b/actions/update.go
@@ -4,12 +4,12 @@ import (
 	"math/rand"
 	"time"
 
-	log "github.com/sirupsen/logrus"
 	"github.com/kopfkrieg/watchtower/container"
+	log "github.com/sirupsen/logrus"
 )
 
 var (
-	letters  = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
+	letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
 )
 
 // Update looks at the running Docker containers to see if any of the images
diff --git a/container/filters_test.go b/container/filters_test.go
index 5db5eeb..7471a4e 100644
--- a/container/filters_test.go
+++ b/container/filters_test.go
@@ -3,8 +3,8 @@ package container
 import (
 	"testing"
 
-	"github.com/stretchr/testify/assert"
 	"github.com/kopfkrieg/watchtower/container/mocks"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestWatchtowerContainersFilter(t *testing.T) {
diff --git a/main.go b/main.go
index 0c372c8..a3b2a7d 100644
--- a/main.go
+++ b/main.go
@@ -8,12 +8,12 @@ import (
 
 	"strconv"
 
-	"github.com/robfig/cron"
-	log "github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
 	"github.com/kopfkrieg/watchtower/actions"
 	"github.com/kopfkrieg/watchtower/container"
 	"github.com/kopfkrieg/watchtower/notifications"
+	"github.com/robfig/cron"
+	log "github.com/sirupsen/logrus"
+	"github.com/urfave/cli"
 )
 
 // DockerAPIMinVersion is the version of the docker API, which is minimally required by
@@ -31,7 +31,7 @@ var (
 	noRestart    bool
 	enableLabel  bool
 	notifier     *notifications.Notifier
-	timeout		 time.Duration
+	timeout      time.Duration
 )
 
 func init() {
@@ -84,10 +84,10 @@ func main() {
 			EnvVar: "DOCKER_TLS_VERIFY",
 		},
 		cli.DurationFlag{
-			Name:	"stop-timeout",
-			Usage:	"timeout before container is forcefully stopped",
-			Value:	time.Second * 10,
-			EnvVar:	"WATCHTOWER_TIMEOUT",
+			Name:   "stop-timeout",
+			Usage:  "timeout before container is forcefully stopped",
+			Value:  time.Second * 10,
+			EnvVar: "WATCHTOWER_TIMEOUT",
 		},
 		cli.BoolFlag{
 			Name:   "label-enable",
diff --git a/notifications/email.go b/notifications/email.go
index 5f84ca5..2dbb86a 100644
--- a/notifications/email.go
+++ b/notifications/email.go
@@ -60,7 +60,7 @@ func (e *emailTypeNotifier) buildMessage(entries []*log.Entry) []byte {
 	}
 
 	t := time.Now()
-	
+
 	header := make(map[string]string)
 	header["From"] = e.From
 	header["To"] = e.To