diff --git a/third_party/2and3/cryptography/fernet.pyi b/third_party/2and3/cryptography/fernet.pyi
index 8ce2d7937..058cd15ce 100644
--- a/third_party/2and3/cryptography/fernet.pyi
+++ b/third_party/2and3/cryptography/fernet.pyi
@@ -1,9 +1,9 @@
-from typing import List, Optional
+from typing import List, Optional, Union, Text
 
 class InvalidToken(Exception): ...
 
 class Fernet(object):
-    def __init__(self, key: bytes) -> None: ...
+    def __init__(self, key: Union[bytes, Text]) -> None: ...
     def decrypt(self, token: bytes, ttl: Optional[int] = ...) -> bytes: ...
     def encrypt(self, data: bytes) -> bytes: ...
     def extract_timestamp(self, token: bytes) -> int: ...