diff --git a/src/main/java/com/taover/util/UtilHttpByOkHttp.java b/src/main/java/com/taover/util/UtilHttpByOkHttp.java
index 58495a8..dcde5bc 100644
--- a/src/main/java/com/taover/util/UtilHttpByOkHttp.java
+++ b/src/main/java/com/taover/util/UtilHttpByOkHttp.java
@@ -5,21 +5,13 @@ import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.nio.charset.Charset;
-import java.security.KeyManagementException;
-import java.security.NoSuchAlgorithmException;
-import java.security.cert.X509Certificate;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
-import javax.net.ssl.HostnameVerifier;
-import javax.net.ssl.SSLContext;
-import javax.net.ssl.SSLSession;
-import javax.net.ssl.SSLSocketFactory;
-import javax.net.ssl.TrustManager;
-import javax.net.ssl.X509TrustManager;
-
+import okhttp3.ConnectionSpec;
 import okhttp3.FormBody;
 import okhttp3.Headers;
 import okhttp3.MediaType;
@@ -259,8 +251,7 @@ public class UtilHttpByOkHttp {
                 .readTimeout(timeoutInSecond, TimeUnit.SECONDS)
                 .writeTimeout(timeoutInSecond,TimeUnit.SECONDS)
                 .retryOnConnectionFailure(true)
-                .sslSocketFactory(getTrustedSSLSocketFactory())
-                .hostnameVerifier(DO_NOT_VERIFY);
+                .connectionSpecs(Arrays.asList(ConnectionSpec.COMPATIBLE_TLS));
         return builder.build();
     }
 	
@@ -299,43 +290,7 @@ public class UtilHttpByOkHttp {
 	    }
 	    return response.body();
 	}
-	
-	
-	static TrustManager[] trustAllCerts = new TrustManager[]{
-        new X509TrustManager() {
-            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
-                X509Certificate[] x509Certificates = new X509Certificate[0];
-                return x509Certificates;
-            }
-
-            public void checkClientTrusted(
-            	java.security.cert.X509Certificate[] certs, String authType) {
-            }
-
-            public void checkServerTrusted(
-            	java.security.cert.X509Certificate[] certs, String authType) {
-            }
-        }
-    };
-
-    static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {
-        @Override
-        public boolean verify(String hostname, SSLSession session) {
-            return true;
-        }
-    };
-
-    private static SSLSocketFactory getTrustedSSLSocketFactory() {
-        try {
-            SSLContext sc = SSLContext.getInstance("SSL");
-            sc.init(null, trustAllCerts, new java.security.SecureRandom());
-            return sc.getSocketFactory();
-        } catch (KeyManagementException | NoSuchAlgorithmException e) {
-            e.printStackTrace();
-            return null;
-        }
-    }
-	
+		
 	public static void main(String args[]){
 		String contactSsid = "lM4AeZSizgFROR/OAHmUos4BUTkf";
 		try {
--
libgit2 0.21.2