diff --git a/chisel2.py b/chisel2.py
index 34f192a00..61fb6d20a 100644
--- a/chisel2.py
+++ b/chisel2.py
@@ -23,12 +23,12 @@ from cryptography import x509
 from cryptography.hazmat.primitives import hashes
 
 import OpenSSL
+import josepy
 
 from acme import challenges
 from acme import client as acme_client
 from acme import crypto_util as acme_crypto_util
 from acme import errors as acme_errors
-from acme import jose
 from acme import messages
 from acme import standalone
 
@@ -40,7 +40,7 @@ DIRECTORY = os.getenv('DIRECTORY', 'http://localhost:4001/directory')
 
 def make_client(email=None):
     """Build an acme.Client and register a new account with a random key."""
-    key = jose.JWKRSA(key=rsa.generate_private_key(65537, 2048, default_backend()))
+    key = josepy.JWKRSA(key=rsa.generate_private_key(65537, 2048, default_backend()))
 
     net = acme_client.ClientNetwork(key, acme_version=2,
                                     user_agent="Boulder integration tester")