diff --git a/lib/adapay-sdk/adapay-core/http.go b/lib/adapay-sdk/adapay-core/http.go
index 1f45321..4d27f9c 100644
--- a/lib/adapay-sdk/adapay-core/http.go
+++ b/lib/adapay-sdk/adapay-core/http.go
@@ -2,6 +2,7 @@ package adapayCore
 
 import (
 	"bytes"
+	"crypto/tls"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -146,8 +147,12 @@ func DoPostReq(url string, params map[string]interface{}, msc *MerchSysConfig) (
 	request.Header.Add("sdk_version", "go_v"+Version)
 	sign, _ := RsaSign(url+paramText, msc)
 	request.Header.Add("signature", sign)
+	tr := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
+	}
+	client := &http.Client{Transport: tr}
 
-	return http.DefaultClient.Do(request)
+	return client.Do(request)
 }
 
 func DoUploadFile(url string, params map[string]interface{}, fileParamName string, msc *MerchSysConfig) (*http.Response, error) {