diff --git a/cmd/admin-bucket-handlers.go b/cmd/admin-bucket-handlers.go
index 4313be5b1..7ebe53b9c 100644
--- a/cmd/admin-bucket-handlers.go
+++ b/cmd/admin-bucket-handlers.go
@@ -24,6 +24,7 @@ import (
 	"net/http"
 
 	"github.com/gorilla/mux"
+	jsoniter "github.com/json-iterator/go"
 	"github.com/minio/madmin-go"
 	"github.com/minio/minio/cmd/logger"
 	iampolicy "github.com/minio/minio/pkg/iam/policy"
@@ -154,6 +155,7 @@ func (a adminAPIHandlers) SetRemoteTargetHandler(w http.ResponseWriter, r *http.
 		return
 	}
 	var target madmin.BucketTarget
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	if err = json.Unmarshal(reqBytes, &target); err != nil {
 		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrAdminConfigBadJSON, err), r.URL)
 		return
diff --git a/cmd/bucket-targets.go b/cmd/bucket-targets.go
index 15cba3704..bf1a59d5f 100644
--- a/cmd/bucket-targets.go
+++ b/cmd/bucket-targets.go
@@ -21,11 +21,11 @@ import (
 	"context"
 	"crypto/sha256"
 	"encoding/hex"
-	"encoding/json"
 	"net/http"
 	"sync"
 	"time"
 
+	jsoniter "github.com/json-iterator/go"
 	"github.com/minio/madmin-go"
 	minio "github.com/minio/minio-go/v7"
 	miniogo "github.com/minio/minio-go/v7"
@@ -386,6 +386,7 @@ func parseBucketTargetConfig(bucket string, cdata, cmetadata []byte) (*madmin.Bu
 		return nil, nil
 	}
 	data = cdata
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	if len(cmetadata) != 0 {
 		if err := json.Unmarshal(cmetadata, &meta); err != nil {
 			return nil, err
diff --git a/cmd/config/crypto.go b/cmd/config/crypto.go
index 4ffeec523..8a8ab78d4 100644
--- a/cmd/config/crypto.go
+++ b/cmd/config/crypto.go
@@ -21,11 +21,11 @@ import (
 	"bytes"
 	"crypto/rand"
 	"encoding/binary"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
 
+	jsoniter "github.com/json-iterator/go"
 	"github.com/minio/minio/pkg/fips"
 	"github.com/minio/minio/pkg/kms"
 	"github.com/secure-io/sio-go"
@@ -88,6 +88,7 @@ func Encrypt(KMS kms.KMS, plaintext io.Reader, context kms.Context) (io.Reader,
 		header [5]byte
 		buffer bytes.Buffer
 	)
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	metadata, err := json.Marshal(encryptedObject{
 		KeyID:     key.KeyID,
 		KMSKey:    key.Ciphertext,
@@ -139,6 +140,7 @@ func Decrypt(KMS kms.KMS, ciphertext io.Reader, context kms.Context) (io.Reader,
 	if _, err := io.ReadFull(ciphertext, metadataBuffer); err != nil {
 		return nil, err
 	}
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	if err := json.Unmarshal(metadataBuffer, &metadata); err != nil {
 		return nil, err
 	}
diff --git a/cmd/data-usage.go b/cmd/data-usage.go
index 747ea33bd..ba7c00e27 100644
--- a/cmd/data-usage.go
+++ b/cmd/data-usage.go
@@ -20,7 +20,6 @@ package cmd
 import (
 	"bytes"
 	"context"
-	"encoding/json"
 	"net/http"
 
 	jsoniter "github.com/json-iterator/go"
@@ -41,6 +40,7 @@ const (
 // storeDataUsageInBackend will store all objects sent on the gui channel until closed.
 func storeDataUsageInBackend(ctx context.Context, objAPI ObjectLayer, dui <-chan madmin.DataUsageInfo) {
 	for dataUsageInfo := range dui {
+		var json = jsoniter.ConfigCompatibleWithStandardLibrary
 		dataUsageJSON, err := json.Marshal(dataUsageInfo)
 		if err != nil {
 			logger.LogIf(ctx, err)
diff --git a/cmd/iam-etcd-store.go b/cmd/iam-etcd-store.go
index a6a685472..c32ce8b51 100644
--- a/cmd/iam-etcd-store.go
+++ b/cmd/iam-etcd-store.go
@@ -29,6 +29,7 @@ import (
 	"unicode/utf8"
 
 	jwtgo "github.com/dgrijalva/jwt-go"
+	jsoniter "github.com/json-iterator/go"
 	"github.com/minio/madmin-go"
 	"github.com/minio/minio-go/v7/pkg/set"
 	"github.com/minio/minio/cmd/config"
@@ -124,6 +125,7 @@ func getIAMConfig(item interface{}, data []byte, itemPath string) error {
 			}
 		}
 	}
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	return json.Unmarshal(data, item)
 }
 
diff --git a/cmd/iam-object-store.go b/cmd/iam-object-store.go
index 79f1bb965..9fa3cbf1a 100644
--- a/cmd/iam-object-store.go
+++ b/cmd/iam-object-store.go
@@ -28,6 +28,7 @@ import (
 	"time"
 	"unicode/utf8"
 
+	jsoniter "github.com/json-iterator/go"
 	"github.com/minio/madmin-go"
 	"github.com/minio/minio/cmd/config"
 	"github.com/minio/minio/cmd/logger"
@@ -244,6 +245,7 @@ func (iamOS *IAMObjectStore) loadIAMConfig(ctx context.Context, item interface{}
 			}
 		}
 	}
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	return json.Unmarshal(data, item)
 }
 
diff --git a/cmd/jwt/parser.go b/cmd/jwt/parser.go
index 410025de8..f54335e77 100644
--- a/cmd/jwt/parser.go
+++ b/cmd/jwt/parser.go
@@ -26,7 +26,6 @@ import (
 	"crypto"
 	"crypto/hmac"
 	"encoding/base64"
-	"encoding/json"
 	"fmt"
 	"strings"
 	"sync"
@@ -188,6 +187,7 @@ func (c *MapClaims) Map() map[string]interface{} {
 
 // MarshalJSON marshals the MapClaims struct
 func (c *MapClaims) MarshalJSON() ([]byte, error) {
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	return json.Marshal(c.MapClaims)
 }
 
diff --git a/cmd/tier-handlers.go b/cmd/tier-handlers.go
index 87f4a4e6c..7a5289b2f 100644
--- a/cmd/tier-handlers.go
+++ b/cmd/tier-handlers.go
@@ -23,6 +23,7 @@ import (
 	"net/http"
 
 	"github.com/gorilla/mux"
+	jsoniter "github.com/json-iterator/go"
 	"github.com/minio/madmin-go"
 	"github.com/minio/minio/cmd/logger"
 	iampolicy "github.com/minio/minio/pkg/iam/policy"
@@ -85,6 +86,7 @@ func (api adminAPIHandlers) AddTierHandler(w http.ResponseWriter, r *http.Reques
 	}
 
 	var cfg madmin.TierConfig
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	if err := json.Unmarshal(reqBytes, &cfg); err != nil {
 		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
 		return
@@ -164,6 +166,7 @@ func (api adminAPIHandlers) EditTierHandler(w http.ResponseWriter, r *http.Reque
 	}
 
 	var creds madmin.TierCreds
+	var json = jsoniter.ConfigCompatibleWithStandardLibrary
 	if err := json.Unmarshal(reqBytes, &creds); err != nil {
 		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
 		return