diff --git a/test/main.py b/test/main.py
index 9e4de54..653548f 100644
--- a/test/main.py
+++ b/test/main.py
@@ -25,8 +25,8 @@ ORIGIN_REF, ALLOTMENT_REF, SECRET = str(uuid4()), '20000000-0000-0000-0000-00000
 # INSTANCE_KEY_RSA = generate_key()
 # INSTANCE_KEY_PUB = INSTANCE_KEY_RSA.public_key()
 
-INSTANCE_KEY_RSA = PrivateKey(str(join(dirname(__file__), '../app/cert/instance.private.pem')))
-INSTANCE_KEY_PUB = PublicKey(str(join(dirname(__file__), '../app/cert/instance.public.pem')))
+INSTANCE_KEY_RSA = PrivateKey.from_file(str(join(dirname(__file__), '../app/cert/instance.private.pem')))
+INSTANCE_KEY_PUB = PublicKey.from_file(str(join(dirname(__file__), '../app/cert/instance.public.pem')))
 
 jwt_encode_key = jwk.construct(INSTANCE_KEY_RSA.pem(), algorithm=ALGORITHMS.RS256)
 jwt_decode_key = jwk.construct(INSTANCE_KEY_PUB.pem(), algorithm=ALGORITHMS.RS256)