diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index f68f16d9e9..68c4a62708 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -9,7 +9,7 @@ PyJWT==1.7.1
 cryptography==2.6.1
 pip>=8.0.3
 python-slugify==1.2.6
-pytz>=2018.07
+pytz>=2019.01
 pyyaml>=3.13,<4
 requests==2.21.0
 ruamel.yaml==0.15.91
diff --git a/requirements_all.txt b/requirements_all.txt
index 77abbdab34..dd5aec398c 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -10,7 +10,7 @@ PyJWT==1.7.1
 cryptography==2.6.1
 pip>=8.0.3
 python-slugify==1.2.6
-pytz>=2018.07
+pytz>=2019.01
 pyyaml>=3.13,<4
 requests==2.21.0
 ruamel.yaml==0.15.91
diff --git a/setup.py b/setup.py
index 2f2c310e57..9be6bbd3a3 100755
--- a/setup.py
+++ b/setup.py
@@ -44,7 +44,7 @@ REQUIRES = [
     'cryptography==2.6.1',
     'pip>=8.0.3',
     'python-slugify==1.2.6',
-    'pytz>=2018.07',
+    'pytz>=2019.01',
     'pyyaml>=3.13,<4',
     'requests==2.21.0',
     'ruamel.yaml==0.15.91',