diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 80357eccf7198d01ebd9c673b2fa69412485f196..63b4673b4358825e8bc846a4bb374accb2ee15f5 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -1,6 +1,6 @@
 PyJWT==1.7.1
 PyNaCl==1.3.0
-aiohttp==3.6.2
+aiohttp==3.6.1
 aiohttp_cors==0.7.0
 astral==1.10.1
 async_timeout==3.0.1
diff --git a/requirements_all.txt b/requirements_all.txt
index cbe4a93f812c39225d5167216e0d30bf9c9b85a3..297067f522030fceda38c3607bdbe8d01af319c2 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1,5 +1,5 @@
 # Home Assistant core
-aiohttp==3.6.2
+aiohttp==3.6.1
 astral==1.10.1
 async_timeout==3.0.1
 attrs==19.2.0
diff --git a/setup.py b/setup.py
index 0e8f8313a987813c31f95aef1076f4d6a80a075b..d2c4934713be4786888da023318ca673bb3fb75b 100755
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@ PROJECT_URLS = {
 PACKAGES = find_packages(exclude=["tests", "tests.*"])
 
 REQUIRES = [
-    "aiohttp==3.6.2",
+    "aiohttp==3.6.1",
     "astral==1.10.1",
     "async_timeout==3.0.1",
     "attrs==19.2.0",