diff --git a/requirements_all.txt b/requirements_all.txt
index b1a5c2b1d89..7b4ff9f1889 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1,7 +1,7 @@
 # Home Assistant core
 requests>=2,<3
 pyyaml>=3.11,<4
-pytz>=2016.4
+pytz>=2016.6.1
 pip>=7.0.0
 jinja2>=2.8
 voluptuous==0.8.9
diff --git a/setup.py b/setup.py
index 9eae8962cf1..32d24b56003 100755
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@ PACKAGES = find_packages(exclude=['tests', 'tests.*'])
 REQUIRES = [
     'requests>=2,<3',
     'pyyaml>=3.11,<4',
-    'pytz>=2016.4',
+    'pytz>=2016.6.1',
     'pip>=7.0.0',
     'jinja2>=2.8',
     'voluptuous==0.8.9',