diff --git a/pom.xml b/pom.xml
index b431288..0148129 100644
--- a/pom.xml
+++ b/pom.xml
@@ -50,7 +50,7 @@
          <dependency>
              <groupId>org.spigotmc</groupId>
              <artifactId>spigot</artifactId>
-             <version>1.14.2-R0.1-SNAPSHOT</version>
+             <version>1.16.5-R0.1-SNAPSHOT</version>
              <scope>provided</scope>
          </dependency>
 <!-- https://mvnrepository.com/artifact/commons-net/commons-net -->
diff --git a/src/me/zombie_striker/sr/Main.java b/src/me/zombie_striker/sr/Main.java
index c6d8d06..731c18a 100644
--- a/src/me/zombie_striker/sr/Main.java
+++ b/src/me/zombie_striker/sr/Main.java
@@ -46,9 +46,14 @@ public class Main extends JavaPlugin {
 	private boolean useFTP = false;
 	private boolean useFTPS = false;
 	private boolean useSFTP = false;
+	private boolean useKeyAuthSFTP = false;
+	private boolean useKeyWithPassphrase = false;
 	private String serverFTP = "www.example.com";
 	private String userFTP = "User";
 	private String passwordFTP = "password";
+	private String remoteFilePathSFTP = "";
+	private String privateKeyPathSFTP = "";
+	private String privateKeyPassphrase = "";
 	private int portFTP = 80;
 	private String naming_format = "Backup-%date%";
 	private SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
@@ -57,6 +62,7 @@ public class Main extends JavaPlugin {
 	private int maxSaveFiles = 1000;
 	private boolean deleteZipOnFail = false;
 	private boolean deleteZipOnFTP = false;
+	private boolean allowUnknownHost = false;
 
 	private int hourToSaveAt = -1;
 
@@ -176,12 +182,16 @@ public void onEnable() {
 		useFTP = (boolean) a("EnableFTP", false);
 		useFTPS = (boolean) a("EnableFTPS", false);
 		useSFTP = (boolean) a("EnableSFTP", false);
+		useKeyAuthSFTP = (boolean) a("UseKeyAuthSFTP",false);
+		useKeyWithPassphrase = (boolean) a("UseKeyWithPassphrase", false);
 		serverFTP = (String) a("FTPAdress", serverFTP);
 		portFTP = (int) a("FTPPort", portFTP);
 		userFTP = (String) a("FTPUsername", userFTP);
 		passwordFTP = (String) a("FTPPassword", passwordFTP);
-
-
+		remoteFilePathSFTP = (String) a("RemoteFilepathSFTP", remoteFilePathSFTP);
+		privateKeyPathSFTP = (String) a("PrivateKeyPathSFTP",privateKeyPathSFTP);
+		privateKeyPassphrase = (String) a("PrivateKeyPassphrase",privateKeyPassphrase);
+		
 		compression = (int) a("CompressionLevel_Max_9", compression);
 
 		removeFilePath = (String) a("FTP_Directory", removeFilePath);
@@ -203,6 +213,7 @@ public void onEnable() {
 
 		deleteZipOnFTP = (boolean) a("DeleteZipOnFTPTransfer", false);
 		deleteZipOnFail = (boolean) a("DeleteZipIfFailed", false);
+		allowUnknownHost = (boolean) a ("AllowUnknownHost",false);
 		separator = (String) a("FolderSeparator", separator);
 		if (saveTheConfig)
 			saveConfig();
@@ -461,24 +472,49 @@ public void run() {
 					for (World world : autosave)
 						world.setAutoSave(true);
 					if (useSFTP) {
+						JSch jsch = new JSch();
+						Session session = null;
 						try {
 							sender.sendMessage(prefix + " Starting SFTP Transfer");
-							JSch jsch = new JSch();
-							Session session = jsch.getSession(userFTP, serverFTP, portFTP);
-							session.setConfig("PreferredAuthentications", "password");
-							session.setPassword(passwordFTP);
+							session = jsch.getSession(userFTP, serverFTP, portFTP);
+							if(useKeyAuthSFTP) {
+								if(useKeyWithPassphrase) {
+									jsch.addIdentity(privateKeyPathSFTP,privateKeyPassphrase);
+								} else {
+									jsch.addIdentity(privateKeyPathSFTP);
+								}
+								session.setConfig("PreferredAuthentications", "publickey,keyboard-interactive,password");
+							} else {
+								session.setConfig("PreferredAuthentications", "password");
+								session.setPassword(passwordFTP);
+							}
+							//allows the server to connect to unknown hosts
+							if(allowUnknownHost) {
+							session.setConfig( "StrictHostKeyChecking", "no" );
+							}
 							session.connect(1000 * 20);
 							Channel channel = session.openChannel("sftp");
 							ChannelSftp sftp = (ChannelSftp) channel;
 							sftp.connect(1000 * 20);
+							FileInputStream zipFileStream = new FileInputStream(zipFile);
+							sftp.put(zipFileStream,remoteFilePathSFTP+ zipFile.getName());
+							sender.sendMessage(prefix+ " Transfer successful");
+							zipFileStream.close();
+							sftp.exit();
+							if (deleteZipOnFTP)
+								zipFile.delete();
 						} catch (Exception | Error e) {
 							sender.sendMessage(
 									prefix + " FAILED TO SFTP TRANSFER FILE: " + zipFile.getName() + ". ERROR IN CONSOLE.");
 							if (deleteZipOnFail)
 								zipFile.delete();
 							e.printStackTrace();
-						}
-					} else if (useFTPS) {
+						}finally {
+							if (session.isConnected()) {
+								sender.sendMessage(prefix + " Disconnecting");
+								session.disconnect();
+							}
+					}} else if (useFTPS) {
 						sender.sendMessage(prefix + " Starting FTPS Transfer");
 						FileInputStream zipFileStream = new FileInputStream(zipFile);
 						FTPSClient ftpClient = new FTPSClient();