diff --git a/vendor/manifest b/vendor/manifest
index e53bc0309..488352990 100644
--- a/vendor/manifest
+++ b/vendor/manifest
@@ -46,7 +46,7 @@
 		{
 			"importpath": "github.com/minio/minio-go",
 			"repository": "https://github.com/minio/minio-go",
-			"revision": "f2362d9e7d8daf89594ee0a079be2424eaf360be",
+			"revision": "f6d5df6b625c00c3180ec6c9240ea710620c7070",
 			"branch": "master"
 		},
 		{
diff --git a/vendor/src/github.com/minio/minio-go/api-list.go b/vendor/src/github.com/minio/minio-go/api-list.go
index 6a228179e..9f238d66b 100644
--- a/vendor/src/github.com/minio/minio-go/api-list.go
+++ b/vendor/src/github.com/minio/minio-go/api-list.go
@@ -69,7 +69,7 @@ func (c Client) ListBuckets() ([]BucketInfo, error) {
 //   // Create a done channel.
 //   doneCh := make(chan struct{})
 //   defer close(doneCh)
-//   // Recurively list all objects in 'mytestbucket'
+//   // Recursively list all objects in 'mytestbucket'
 //   recursive := true
 //   for message := range api.ListObjectsV2("mytestbucket", "starthere", recursive, doneCh) {
 //       fmt.Println(message)
diff --git a/vendor/src/github.com/minio/minio-go/api-put-object.go b/vendor/src/github.com/minio/minio-go/api-put-object.go
index 0b6848fff..e61f305cb 100644
--- a/vendor/src/github.com/minio/minio-go/api-put-object.go
+++ b/vendor/src/github.com/minio/minio-go/api-put-object.go
@@ -17,7 +17,6 @@
 package minio
 
 import (
-	"bytes"
 	"crypto/md5"
 	"crypto/sha256"
 	"hash"
@@ -214,34 +213,25 @@ func (c Client) putObjectSingle(bucketName, objectName string, reader io.Reader,
 		hashAlgos["sha256"] = sha256.New()
 	}
 
-	if size <= minPartSize {
-		// Initialize a new temporary buffer.
-		tmpBuffer := new(bytes.Buffer)
-		size, err = hashCopyN(hashAlgos, hashSums, tmpBuffer, reader, size)
-		reader = bytes.NewReader(tmpBuffer.Bytes())
-		tmpBuffer.Reset()
-	} else {
-		// Initialize a new temporary file.
-		var tmpFile *tempFile
-		tmpFile, err = newTempFile("single$-putobject-single")
-		if err != nil {
-			return 0, err
-		}
-		defer tmpFile.Close()
-		size, err = hashCopyN(hashAlgos, hashSums, tmpFile, reader, size)
-		if err != nil {
-			return 0, err
-		}
-		// Seek back to beginning of the temporary file.
-		if _, err = tmpFile.Seek(0, 0); err != nil {
-			return 0, err
-		}
-		reader = tmpFile
+	// Initialize a new temporary file.
+	tmpFile, err := newTempFile("single$-putobject-single")
+	if err != nil {
+		return 0, err
 	}
+	defer tmpFile.Close()
+
+	size, err = hashCopyN(hashAlgos, hashSums, tmpFile, reader, size)
 	// Return error if its not io.EOF.
 	if err != nil && err != io.EOF {
 		return 0, err
 	}
+
+	// Seek back to beginning of the temporary file.
+	if _, err = tmpFile.Seek(0, 0); err != nil {
+		return 0, err
+	}
+	reader = tmpFile
+
 	// Execute put object.
 	st, err := c.putObjectDo(bucketName, objectName, reader, hashSums["md5"], hashSums["sha256"], size, metaData)
 	if err != nil {
diff --git a/vendor/src/github.com/minio/minio-go/api.go b/vendor/src/github.com/minio/minio-go/api.go
index c04034a86..0e89cfa55 100644
--- a/vendor/src/github.com/minio/minio-go/api.go
+++ b/vendor/src/github.com/minio/minio-go/api.go
@@ -30,7 +30,6 @@ import (
 	"net/http/httputil"
 	"net/url"
 	"os"
-	"regexp"
 	"runtime"
 	"strings"
 	"sync"
@@ -309,40 +308,6 @@ type requestMetadata struct {
 	contentMD5Bytes    []byte
 }
 
-// regCred matches credential string in HTTP header
-var regCred = regexp.MustCompile("Credential=([A-Z0-9]+)/")
-
-// regCred matches signature string in HTTP header
-var regSign = regexp.MustCompile("Signature=([[0-9a-f]+)")
-
-// Filter out signature value from Authorization header.
-func (c Client) filterSignature(req *http.Request) {
-	origAuth := req.Header.Get("Authorization")
-	if origAuth != "" {
-		return
-	}
-
-	if !strings.HasPrefix(origAuth, signV4Algorithm) {
-		// Set a temporary redacted auth
-		req.Header.Set("Authorization", "AWS **REDACTED**:**REDACTED**")
-		return
-	}
-
-	/// Signature V4 authorization header.
-
-	// Strip out accessKeyID from:
-	// Credential=<access-key-id>/<date>/<aws-region>/<aws-service>/aws4_request
-	newAuth := regCred.ReplaceAllString(origAuth, "Credential=**REDACTED**/")
-
-	// Strip out 256-bit signature from: Signature=<256-bit signature>
-	newAuth = regSign.ReplaceAllString(newAuth, "Signature=**REDACTED**")
-
-	// Set a temporary redacted auth
-	req.Header.Set("Authorization", newAuth)
-
-	return
-}
-
 // dumpHTTP - dump HTTP request and response.
 func (c Client) dumpHTTP(req *http.Request, resp *http.Response) error {
 	// Starts http dump.
@@ -352,7 +317,10 @@ func (c Client) dumpHTTP(req *http.Request, resp *http.Response) error {
 	}
 
 	// Filter out Signature field from Authorization header.
-	c.filterSignature(req)
+	origAuth := req.Header.Get("Authorization")
+	if origAuth != "" {
+		req.Header.Set("Authorization", redactSignature(origAuth))
+	}
 
 	// Only display request header.
 	reqTrace, err := httputil.DumpRequestOut(req, false)
diff --git a/vendor/src/github.com/minio/minio-go/utils.go b/vendor/src/github.com/minio/minio-go/utils.go
index 4fa43b1ff..1ebf88460 100644
--- a/vendor/src/github.com/minio/minio-go/utils.go
+++ b/vendor/src/github.com/minio/minio-go/utils.go
@@ -227,3 +227,26 @@ func filterHeader(header http.Header, filterKeys []string) (filteredHeader http.
 	}
 	return filteredHeader
 }
+
+// regCred matches credential string in HTTP header
+var regCred = regexp.MustCompile("Credential=([A-Z0-9]+)/")
+
+// regCred matches signature string in HTTP header
+var regSign = regexp.MustCompile("Signature=([[0-9a-f]+)")
+
+// Redact out signature value from authorization string.
+func redactSignature(origAuth string) string {
+	if !strings.HasPrefix(origAuth, signV4Algorithm) {
+		// Set a temporary redacted auth
+		return "AWS **REDACTED**:**REDACTED**"
+	}
+
+	/// Signature V4 authorization header.
+
+	// Strip out accessKeyID from:
+	// Credential=<access-key-id>/<date>/<aws-region>/<aws-service>/aws4_request
+	newAuth := regCred.ReplaceAllString(origAuth, "Credential=**REDACTED**/")
+
+	// Strip out 256-bit signature from: Signature=<256-bit signature>
+	return regSign.ReplaceAllString(newAuth, "Signature=**REDACTED**")
+}
diff --git a/vendor/src/github.com/minio/minio-go/utils_test.go b/vendor/src/github.com/minio/minio-go/utils_test.go
index 4e015c855..0c6b56076 100644
--- a/vendor/src/github.com/minio/minio-go/utils_test.go
+++ b/vendor/src/github.com/minio/minio-go/utils_test.go
@@ -23,6 +23,31 @@ import (
 	"time"
 )
 
+// Tests signature redacting function used
+// in filtering on-wire Authorization header.
+func TestRedactSignature(t *testing.T) {
+	testCases := []struct {
+		authValue                 string
+		expectedRedactedAuthValue string
+	}{
+		{
+			authValue:                 "AWS 1231313:888x000231==",
+			expectedRedactedAuthValue: "AWS **REDACTED**:**REDACTED**",
+		},
+		{
+			authValue:                 "AWS4-HMAC-SHA256 Credential=12312313/20170613/us-east-1/s3/aws4_request, SignedHeaders=host;x-amz-content-sha256;x-amz-date, Signature=02131231312313213",
+			expectedRedactedAuthValue: "AWS4-HMAC-SHA256 Credential=**REDACTED**/20170613/us-east-1/s3/aws4_request, SignedHeaders=host;x-amz-content-sha256;x-amz-date, Signature=**REDACTED**",
+		},
+	}
+
+	for i, testCase := range testCases {
+		redactedAuthValue := redactSignature(testCase.authValue)
+		if redactedAuthValue != testCase.expectedRedactedAuthValue {
+			t.Errorf("Test %d: Expected %s, got %s", i+1, testCase.expectedRedactedAuthValue, redactedAuthValue)
+		}
+	}
+}
+
 // Tests filter header function by filtering out
 // some custom header keys.
 func TestFilterHeader(t *testing.T) {