diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 41bb086bfbd3ef..6066ee71715d0d 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -27,6 +27,7 @@ ruamel.yaml==0.15.100
 sqlalchemy==1.3.18
 voluptuous-serialize==2.4.0
 voluptuous==0.11.7
+yarl==1.4.2
 zeroconf==0.28.0
 
 pycryptodome>=3.6.6
diff --git a/requirements.txt b/requirements.txt
index 38d077e3da1637..702e4eaf19fff9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,3 +20,4 @@ requests==2.24.0
 ruamel.yaml==0.15.100
 voluptuous==0.11.7
 voluptuous-serialize==2.4.0
+yarl==1.4.2
diff --git a/setup.py b/setup.py
index ae762d2d8cee57..81f8727ed60e93 100755
--- a/setup.py
+++ b/setup.py
@@ -52,6 +52,7 @@
     "ruamel.yaml==0.15.100",
     "voluptuous==0.11.7",
     "voluptuous-serialize==2.4.0",
+    "yarl==1.4.2",
 ]
 
 MIN_PY_VERSION = ".".join(map(str, hass_const.REQUIRED_PYTHON_VER))