diff --git a/pipenv/core.py b/pipenv/core.py
index a2396cbc..ea8a0698 100644
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -475,7 +475,8 @@ def ensure_python(three=None, python=None):
                     '3.3': '3.3.7',
                     '3.4': '3.4.8',
                     '3.5': '3.5.5',
-                    '3.6': '3.6.5',
+                    '3.6': '3.6.6',
+                    '3.7': '3.7.0',
                 }
                 try:
                     if len(python.split('.')) == 2: