diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 3258f0fb2f2..d0253ad723e 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -8,7 +8,7 @@ attrs==19.3.0
 bcrypt==3.1.7
 certifi>=2019.11.28
 ciso8601==2.1.3
-cryptography==2.8
+cryptography==2.9
 defusedxml==0.6.0
 distro==1.4.0
 hass-nabucasa==0.33.0
diff --git a/requirements_all.txt b/requirements_all.txt
index ed8a0dd98e1..9fd3e1a303b 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -9,7 +9,7 @@ ciso8601==2.1.3
 importlib-metadata==1.5.0
 jinja2>=2.11.1
 PyJWT==1.7.1
-cryptography==2.8
+cryptography==2.9
 pip>=8.0.3
 python-slugify==4.0.0
 pytz>=2019.03
diff --git a/setup.py b/setup.py
index e0daacd98bf..89205d4ee8a 100755
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@ REQUIRES = [
     "jinja2>=2.11.1",
     "PyJWT==1.7.1",
     # PyJWT has loose dependency. We want the latest one.
-    "cryptography==2.8",
+    "cryptography==2.9",
     "pip>=8.0.3",
     "python-slugify==4.0.0",
     "pytz>=2019.03",