Volley SSL - Hostname

Estou tentando incluir nova versão do meu app, mais devido as normas do Google está sendo rejeitado. alguém já passou por esse problema.

Segue código.

  RequestQueue queue = Volley.newRequestQueue(Services.this, new HurlStack(null, newSslSocketFactory()));
    // Request a string response from the provided URL.

    try {
        final ProgressDialog pDialog = new ProgressDialog(Services.this);
        pDialog.setMessage("Wainting ...");
        pDialog.show();

        String url = "https://sitesecurity.com";
             StringRequest stringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>(){
            @Override
            public void onResponse(String response) {

}

 private SSLSocketFactory newSslSocketFactory() {
        try {
            HttpsURLConnection.setDefaultHostnameVerifier(new HttpsTrustManager());
            SSLContext context = SSLContext.getInstance("TLS");
            context.init(null, new X509TrustManager[]{new Service.NullX509TrustManager()}, new SecureRandom());
            HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());
            SSLSocketFactory sf = context.getSocketFactory();
            return sf;
        } catch (Exception e) {
            throw new AssertionError(e);
        }
    }

Vulnerability APK Version(s) Past Due Date HostnameVerifier
Your app(s) are using an unsafe implementation of the HostnameVerifier interface. You can find more information about how resolve the issue in this Google Help Center article. 5 March 01, 2017