Pin version of hypothesis above 1.11.4.
diff --git a/tests/test_with_hypothesis.py b/tests/test_with_hypothesis.py
index 261a21d..1e39b6b 100644
--- a/tests/test_with_hypothesis.py
+++ b/tests/test_with_hypothesis.py
@@ -1,11 +1,14 @@
+from hypothesis import binary
+
import pytest
from cryptography.fernet import Fernet
+
hypothesis = pytest.importorskip("hypothesis")
-@hypothesis.given(bytes)
+@hypothesis.given(binary())
def test_fernet(data):
f = Fernet(Fernet.generate_key())
ct = f.encrypt(data)