diff --git a/drivers/s3/meta.go b/drivers/s3/meta.go
index 18b31db9..453f4db7 100644
--- a/drivers/s3/meta.go
+++ b/drivers/s3/meta.go
@@ -12,6 +12,7 @@ type Addition struct {
 	Region                   string `json:"region"`
 	AccessKeyID              string `json:"access_key_id" required:"true"`
 	SecretAccessKey          string `json:"secret_access_key" required:"true"`
+	SessionToken             string `json:"session_token"`
 	CustomHost               string `json:"custom_host"`
 	SignURLExpire            int    `json:"sign_url_expire" type:"number" default:"4"`
 	Placeholder              string `json:"placeholder"`
diff --git a/drivers/s3/util.go b/drivers/s3/util.go
index 40e11190..5578176a 100644
--- a/drivers/s3/util.go
+++ b/drivers/s3/util.go
@@ -22,7 +22,7 @@ import (
 
 func (d *S3) initSession() error {
 	cfg := &aws.Config{
-		Credentials:      credentials.NewStaticCredentials(d.AccessKeyID, d.SecretAccessKey, ""),
+		Credentials:      credentials.NewStaticCredentials(d.AccessKeyID, d.SecretAccessKey, d.SessionToken),
 		Region:           &d.Region,
 		Endpoint:         &d.Endpoint,
 		S3ForcePathStyle: aws.Bool(d.ForcePathStyle),