diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 36dd38f7473..e8823643244 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -11,7 +11,7 @@ awesomeversion==21.8.1
 backports.zoneinfo;python_version<"3.9"
 bcrypt==3.1.7
 certifi>=2020.12.5
-ciso8601==2.1.3
+ciso8601==2.2.0
 cryptography==3.4.8
 defusedxml==0.7.1
 emoji==1.2.0
diff --git a/requirements.txt b/requirements.txt
index a9d9bc0d238..affe27d7743 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ awesomeversion==21.8.1
 backports.zoneinfo;python_version<"3.9"
 bcrypt==3.1.7
 certifi>=2020.12.5
-ciso8601==2.1.3
+ciso8601==2.2.0
 httpx==0.19.0
 jinja2==3.0.1
 PyJWT==2.1.0
diff --git a/setup.py b/setup.py
index 38febf7c3a0..13768c4de31 100755
--- a/setup.py
+++ b/setup.py
@@ -40,7 +40,7 @@ REQUIRES = [
     'backports.zoneinfo;python_version<"3.9"',
     "bcrypt==3.1.7",
     "certifi>=2020.12.5",
-    "ciso8601==2.1.3",
+    "ciso8601==2.2.0",
     "httpx==0.19.0",
     "jinja2==3.0.1",
     "PyJWT==2.1.0",