diff --git a/setup.py b/setup.py
index 7261ff14..7bedd1c5 100644
--- a/setup.py
+++ b/setup.py
@@ -74,8 +74,8 @@ def get_include_files():
 
     # Dependencies
     install_requires=[
-        'nassl>=1.1.0,<1.2.0',
-        'cryptography==2.2.2',
+        'nassl>=2.1.0,<2.2.0',
+        'cryptography==2.3',
         'tls-parser>=1.2.0,<1.3.0'
     ],