diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1925d50..5673a3b 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -45,7 +45,8 @@
             android:taskAffinity="android.task.calendar"
             android:hardwareAccelerated="true"
             android:backupAgent="com.android.calendar.CalendarBackupAgent"
-            android:requiredAccountType="*" >
+            android:requiredAccountType="*"
+            android:usesCleartextTraffic="false" >
 
         <meta-data android:name="com.google.android.backup.api_key"
                 android:value="AEdPqrEAAAAIM256oVOGnuSel5QKDpL8je_T65ZI8rFnDinssA" />