diff --git a/setup.py b/setup.py
index d015561de6..eb64c78d04 100755
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 #
 # You need to have the setuptools module installed. Try reading the setuptools
 # documentation: http://pypi.python.org/pypi/setuptools
-REQUIRES = ["requests >= 2.0.0", "six", "pytz", "PyJWT >= 1.4.2"]
+REQUIRES = ["requests >= 2.0.0", "six", "pytz", "PyJWT >= 1.4.2,<1.5.1"]
 
 if sys.version_info < (3, 0):
     REQUIRES.extend(["cryptography >= 1.3.4", "idna >= 2.0.0", "pyOpenSSL >= 0.14"])