diff --git a/pom.xml b/pom.xml
index e9a0c78..795aa72 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.clevertap.apns</groupId>
     <artifactId>apns-http2</artifactId>
-    <version>1.0.3</version>
+    <version>1.0.4</version>
 
     <name>apns-http2</name>
     <description>A library for communicating with the Apple Push Gateway in HTTP/2.</description>
@@ -34,7 +34,7 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>okhttp</artifactId>
-            <version>3.2.0</version>
+            <version>3.10.0</version>
         </dependency>
 
         <dependency>
diff --git a/src/main/java/com/clevertap/apns/clients/SyncOkHttpApnsClient.java b/src/main/java/com/clevertap/apns/clients/SyncOkHttpApnsClient.java
index 3ba261c..591d9b1 100644
--- a/src/main/java/com/clevertap/apns/clients/SyncOkHttpApnsClient.java
+++ b/src/main/java/com/clevertap/apns/clients/SyncOkHttpApnsClient.java
@@ -43,6 +43,7 @@
 import java.security.cert.CertificateException;
 import java.security.cert.X509Certificate;
 import java.security.spec.InvalidKeySpecException;
+import java.util.Arrays;
 import java.util.UUID;
 
 /**
@@ -177,12 +178,20 @@ public SyncOkHttpApnsClient(InputStream certificate, String password, boolean pr
         SSLContext sslContext = SSLContext.getInstance("TLS");
 
         final TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
-        tmf.init((KeyStore) null);
+        tmf.init(ks);
         sslContext.init(keyManagers, tmf.getTrustManagers(), null);
 
         final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
-
-        builder.sslSocketFactory(sslSocketFactory);
+        TrustManagerFactory trustManagerFactory =
+                TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+        trustManagerFactory.init((KeyStore) null);
+        TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
+        if (trustManagers.length != 1 || !(trustManagers[0] instanceof X509TrustManager)) {
+            throw new IllegalStateException("Unexpected default trust managers:" + Arrays.toString(trustManagers));
+        }
+        X509TrustManager trustManager = (X509TrustManager) trustManagers[0];
+        sslContext.init(null, new TrustManager[]{trustManager}, null);
+        builder.sslSocketFactory(sslSocketFactory, trustManager);
 
         client = builder.build();
 
diff --git a/src/test/com/clevertap/apns/integration/NotificationTest.java b/src/test/com/clevertap/apns/integration/NotificationTest.java
new file mode 100644
index 0000000..e2cf22e
--- /dev/null
+++ b/src/test/com/clevertap/apns/integration/NotificationTest.java
@@ -0,0 +1,60 @@
+package com.clevertap.apns.integration;
+
+import com.clevertap.apns.ApnsClient;
+import com.clevertap.apns.Notification;
+import com.clevertap.apns.NotificationResponse;
+import com.clevertap.apns.NotificationResponseListener;
+import com.clevertap.apns.clients.ApnsClientBuilder;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.security.KeyManagementException;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
+
+public class NotificationTest {
+    private static String APN_AUTH_KEY;
+    private static String TOKEN;
+    private static String TEAM_ID;
+    private static String KEY_ID;
+
+    ApnsClient asyncClient;
+    @BeforeClass
+    public static void init(){
+        APN_AUTH_KEY = System.getProperty("com.clevertap.auth_key");
+        TOKEN = System.getProperty("com.clevertap.token");
+        TEAM_ID = System.getProperty("com.clevertap.team_id");
+        KEY_ID = System.getProperty("com.clevertap.key_id");
+    }
+    @Before
+    public void setUp() throws CertificateException, UnrecoverableKeyException, NoSuchAlgorithmException, KeyStoreException, KeyManagementException, IOException {
+        asyncClient = new ApnsClientBuilder().
+                inAsynchronousMode().
+                withApnsAuthKey(APN_AUTH_KEY).
+                withTeamID(TEAM_ID).
+                withKeyID(KEY_ID).
+                build();
+    }
+    @Test
+    public void sendNotification(){
+        Notification notification = new Notification.Builder(TOKEN).alertBody("Hello").build();
+
+        asyncClient.push(notification, new NotificationResponseListener() {
+            @Override
+            public void onSuccess(Notification notification) {
+
+            }
+
+            @Override
+            public void onFailure(Notification notification, NotificationResponse response) {
+                Assert.fail("Failed to send notification: "+response.getResponseBody());
+            }
+        });
+    }
+
+}