diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index c9282920ae93710db13b4dad120ca7190f00ed4e..b06287bcf17e00647ff57fb243b899a762bfee93 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -1,4 +1,4 @@
-aiohttp==3.4.4
+aiohttp==3.5.1
 astral==1.7.1
 async_timeout==3.0.1
 attrs==18.2.0
diff --git a/requirements_all.txt b/requirements_all.txt
index 412b274b08f5023c161752a50c39622725e707db..8fc5c08e737650b7bccdb6b2eb0bff15157bd45c 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1,5 +1,5 @@
 # Home Assistant core
-aiohttp==3.4.4
+aiohttp==3.5.1
 astral==1.7.1
 async_timeout==3.0.1
 attrs==18.2.0
diff --git a/setup.py b/setup.py
index 84a0f8811a1f2106e51293a1a098d76ac98933c2..0581d7bfcfa96d1554dede00f1d75be11db199fd 100755
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ PROJECT_URLS = {
 PACKAGES = find_packages(exclude=['tests', 'tests.*'])
 
 REQUIRES = [
-    'aiohttp==3.4.4',
+    'aiohttp==3.5.1',
     'astral==1.7.1',
     'async_timeout==3.0.1',
     'attrs==18.2.0',