diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 2e7acb212e2..aac86d17a5b 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -5,7 +5,7 @@ pip>=8.0.3
 jinja2>=2.9.6
 voluptuous==0.10.5
 typing>=3,<4
-aiohttp==2.3.5
+aiohttp==2.3.6
 yarl==0.15.0
 async_timeout==2.0.0
 chardet==3.0.4
diff --git a/requirements_all.txt b/requirements_all.txt
index 7349d7dbd35..49bf3338fec 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -6,7 +6,7 @@ pip>=8.0.3
 jinja2>=2.9.6
 voluptuous==0.10.5
 typing>=3,<4
-aiohttp==2.3.5
+aiohttp==2.3.6
 yarl==0.15.0
 async_timeout==2.0.0
 chardet==3.0.4
diff --git a/setup.py b/setup.py
index d79f11732ad..49e3358cb72 100755
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@ REQUIRES = [
     'jinja2>=2.9.6',
     'voluptuous==0.10.5',
     'typing>=3,<4',
-    'aiohttp==2.3.5',   # If updated, check if yarl also needs an update!
+    'aiohttp==2.3.6',   # If updated, check if yarl also needs an update!
     'yarl==0.15.0',
     'async_timeout==2.0.0',
     'chardet==3.0.4',