diff --git a/src/main/java/de/fabianonline/telegram_backup/Config.java b/src/main/java/de/fabianonline/telegram_backup/Config.java
index f90dcfb..8f8d6f1 100644
--- a/src/main/java/de/fabianonline/telegram_backup/Config.java
+++ b/src/main/java/de/fabianonline/telegram_backup/Config.java
@@ -30,6 +30,7 @@ public class Config {
     public static final String FILE_NAME_AUTH_KEY = "auth.dat";
     public static final String FILE_NAME_DC = "dc.dat";
     public static final String FILE_NAME_DB = "database.sqlite";
+    public static final String FILE_NAME_DB_BACKUP = "database.version_%d.backup.sqlite";
     public static final String FILE_FILES_BASE = "files";
     public static final String FILE_STICKER_BASE = "stickers";
 
diff --git a/src/main/java/de/fabianonline/telegram_backup/Database.java b/src/main/java/de/fabianonline/telegram_backup/Database.java
index 0e804c4..864a43d 100644
--- a/src/main/java/de/fabianonline/telegram_backup/Database.java
+++ b/src/main/java/de/fabianonline/telegram_backup/Database.java
@@ -36,6 +36,8 @@ import java.io.IOException;
 import java.util.LinkedList;
 import java.util.LinkedHashMap;
 import java.util.HashMap;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
 
 import de.fabianonline.telegram_backup.mediafilemanager.AbstractMediaFileManager;
 import de.fabianonline.telegram_backup.mediafilemanager.FileManagerFactory;
@@ -151,6 +153,7 @@ public class Database {
 				version = 5;
 			}
 			if (version==5) {
+				backupDatabase(5);
 				System.out.println("  Updating to version 6...");
 				stmt.executeUpdate(
 					"CREATE TABLE messages_new (\n" +
@@ -239,6 +242,20 @@ public class Database {
 		}
 	}
 	
+	private void backupDatabase(int currentVersion) {
+		String filename = String.format(Config.FILE_NAME_DB_BACKUP, currentVersion);
+		System.out.println("  Creating a backup of your database as " + filename);
+		try {
+			Files.copy(
+				new File(user_manager.getFileBase() + Config.FILE_NAME_DB).toPath(),
+				new File(user_manager.getFileBase() + filename).toPath(),
+				StandardCopyOption.REPLACE_EXISTING);
+		} catch (IOException e) {
+			e.printStackTrace();
+			throw new RuntimeException("Could not create backup.");
+		}
+	}
+	
 	public int getTopMessageID() {
 		try {
 			ResultSet rs = stmt.executeQuery("SELECT MAX(id) FROM messages");