diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index e76dc24d9dd..c69e9eb4af4 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -1,4 +1,4 @@
-aiohttp==3.2.1
+aiohttp==3.3.0
 astral==1.6.1
 async_timeout==3.0.0
 attrs==18.1.0
diff --git a/requirements_all.txt b/requirements_all.txt
index 76492dee899..d2b52d17961 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1,5 +1,5 @@
 # Home Assistant core
-aiohttp==3.2.1
+aiohttp==3.3.0
 astral==1.6.1
 async_timeout==3.0.0
 attrs==18.1.0
diff --git a/setup.py b/setup.py
index 4390b980f9e..a4d15feb7fc 100755
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@ DOWNLOAD_URL = '{}/archive/{}.zip'.format(GITHUB_URL, hass_const.__version__)
 PACKAGES = find_packages(exclude=['tests', 'tests.*'])
 
 REQUIRES = [
-    'aiohttp==3.2.1',
+    'aiohttp==3.3.0',
     'astral==1.6.1',
     'async_timeout==3.0.0',
     'attrs==18.1.0',