diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index d9d8618f78e..bcbe614ca20 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -1,6 +1,6 @@
 PyJWT==1.7.1
 PyNaCl==1.3.0
-aiohttp==3.7.4
+aiohttp==3.7.4.post0
 aiohttp_cors==0.7.0
 astral==1.10.1
 async-upnp-client==0.14.13
diff --git a/requirements.txt b/requirements.txt
index 6f6640764a6..dafb5686e4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 -c homeassistant/package_constraints.txt
 
 # Home Assistant Core
-aiohttp==3.7.4
+aiohttp==3.7.4.post0
 astral==1.10.1
 async_timeout==3.0.1
 attrs==20.3.0
diff --git a/setup.py b/setup.py
index 04a334cfd21..d3a8a5aea70 100755
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ PROJECT_URLS = {
 PACKAGES = find_packages(exclude=["tests", "tests.*"])
 
 REQUIRES = [
-    "aiohttp==3.7.4",
+    "aiohttp==3.7.4.post0",
     "astral==1.10.1",
     "async_timeout==3.0.1",
     "attrs==20.3.0",