diff --git a/py/converter.py b/py/converter.py
index 8589a8e..2e93497 100644
--- a/py/converter.py
+++ b/py/converter.py
@@ -35,10 +35,10 @@ f.close()
 
 def p2h(data, keymode):
     if(keymode=="sk"):
-        sk = SigningKey.from_pem(data.encode(), curve=SECP256k1)
+        sk = SigningKey.from_pem(data.encode())
         print(sk.to_string().hex())
     elif(keymode=="vk"):
-        vk = VerifyingKey.from_pem(data.encode(), curve=SECP256k1)
+        vk = VerifyingKey.from_pem(data.encode())
         print(vk.to_string().hex())
 
 def h2p(data, keymode):