diff --git a/server/netwrapper.py b/server/netwrapper.py
index ad68f57..2cf84b8 100644
--- a/server/netwrapper.py
+++ b/server/netwrapper.py
@@ -40,7 +40,7 @@ class NetWrapper:
         self.network.send_msg(self.clientAddr, identMsg)
 
     def sendMessage(self, message: bytes) -> None:
-        cipher = ChaCha20.new(self.cipherkey, get_random_bytes(12))
+        cipher = ChaCha20.new(key=self.cipherkey, nonce=get_random_bytes(12))
         ciphertext = cipher.encrypt(message)
         nonce = b64encode(cipher.nonce).decode('ASCII')
         ct = b64encode(ciphertext).decode('ASCII')
@@ -75,7 +75,7 @@ class NetWrapper:
         try:
             retnonce = b64decode(b64['nonce'])
             retciphertext = b64decode(b64['message'])
-            retcipher = ChaCha20.new(self.cipherkey, nonce=retnonce)
+            retcipher = ChaCha20.new(key=self.cipherkey, nonce=retnonce)
             plaintext = retcipher.decrypt(retciphertext).decode('UTF-8').split(' ')
             linsuccess = (not (len(plaintext) != 3 or plaintext[0] != "LIN" or plaintext[
                 1] != self.currentUser)) and self.authenticationInstance.login(plaintext[1], plaintext[2])
@@ -83,7 +83,7 @@ class NetWrapper:
                 message = "OK".encode('UTF-8')
             else:
                 message = "ERROR".encode('UTF-8')
-            cipher = ChaCha20.new(self.cipherkey, get_random_bytes(12))
+            cipher = ChaCha20.new(key=self.cipherkey, nonce=get_random_bytes(12))
             ciphertext = cipher.encrypt(message)
             nonce = b64encode(cipher.nonce).decode('ASCII')
             ct = b64encode(ciphertext).decode('ASCII')
@@ -139,7 +139,7 @@ class NetWrapper:
                 b64 = json.loads(msg.decode('UTF-8'))
             retnonce = b64decode(b64['nonce'])
             retciphertext = b64decode(b64['message'])
-            retcipher = ChaCha20.new(self.cipherkey, nonce=retnonce)
+            retcipher = ChaCha20.new(key=self.cipherkey, nonce=retnonce)
             plaintext = retcipher.decrypt(retciphertext)
             return plaintext
         except Exception: