diff --git a/actions/update.go b/actions/update.go
index 7999d4a..27e884a 100644
--- a/actions/update.go
+++ b/actions/update.go
@@ -45,7 +45,7 @@ func Update(client container.Client, names []string, cleanup bool) error {
 	for i, container := range containers {
 		stale, err := client.IsContainerStale(container)
 		if err != nil {
-			log.Infof("Unable to update container %. Proceeding to next.", containers[i].Name())
+			log.Infof("Unable to update container %s. Proceeding to next.", containers[i].Name())
 			log.Debug(err)
 			stale = false
 		}
diff --git a/container/client.go b/container/client.go
index bdcbc53..b41e6eb 100644
--- a/container/client.go
+++ b/container/client.go
@@ -7,6 +7,7 @@ import (
 	log "github.com/Sirupsen/logrus"
 	dockerclient "github.com/docker/docker/client"
 	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/cli/command"
 	"golang.org/x/net/context"
 )
 
@@ -144,16 +145,23 @@ func (client dockerClient) IsContainerStale(c Container) (bool, error) {
 
 	if client.pullImages {
 		log.Debugf("Pulling %s for %s", imageName, c.Name())
+		
+		auth := types.AuthConfig {
+			Username: "testuser",
+			Password: "testpassword",
+		}
+		encodedAuth, err := command.EncodeAuthToBase64(auth)
+		if err != nil {
+			return false, err
+		}
 
 		// Note: ImagePullOptions below can take a RegistryAuth arg if 401 on private registry
-		closer, err := client.api.ImagePull(bg, imageName, types.ImagePullOptions{})
-		if (err != nil) {
+		closer, err := client.api.ImagePull(bg, imageName, types.ImagePullOptions{RegistryAuth: encodedAuth})
+		if err != nil {
 			log.Debugf("Error pulling image %s, %s", imageName, err)
 			return false, err
-		} else {
-			closer.Close()
 		}
-		
+		defer closer.Close()
 	}
 
 	newImageInfo, _, err := client.api.ImageInspectWithRaw(bg, imageName)
@@ -166,6 +174,7 @@ func (client dockerClient) IsContainerStale(c Container) (bool, error) {
 		return true, nil
 	} else {
 		log.Debugf("No new images found for %s", c.Name())
+		log.Debugf("Old image ID %s is the same as New Image ID %s", oldImageInfo.ID, newImageInfo.ID)
 	}