CryptoJWT version 1.6.0 doesn't exit yet.

Author: rohe

setup.py

@@ -67,7 +67,7 @@ def run_tests(self):
         "Programming Language :: Python :: 3.8",
         "Topic :: Software Development :: Libraries :: Python Modules"],
     install_requires=[
-        "cryptojwt>=1.6.0",
+        "cryptojwt>=1.5.2",
         "pyOpenSSL",
         "filelock>=3.0.12",
         'pyyaml>=5.1.2'