diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 33e3ecd61cb3..bb2c4c8636b8 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -6,7 +6,7 @@ astral==1.10.1
 async_timeout==3.0.1
 attrs==19.3.0
 bcrypt==3.1.7
-certifi>=2020.6.20
+certifi>=2020.12.5
 ciso8601==2.1.3
 cryptography==3.2
 defusedxml==0.6.0
diff --git a/requirements.txt b/requirements.txt
index a4c749e4c54e..7492e7941726 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ astral==1.10.1
 async_timeout==3.0.1
 attrs==19.3.0
 bcrypt==3.1.7
-certifi>=2020.6.20
+certifi>=2020.12.5
 ciso8601==2.1.3
 httpx==0.16.1
 importlib-metadata==1.6.0;python_version<'3.8'
diff --git a/setup.py b/setup.py
index e553dc0b1f48..59ea906344c1 100755
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ REQUIRES = [
     "async_timeout==3.0.1",
     "attrs==19.3.0",
     "bcrypt==3.1.7",
-    "certifi>=2020.6.20",
+    "certifi>=2020.12.5",
     "ciso8601==2.1.3",
     "httpx==0.16.1",
     "importlib-metadata==1.6.0;python_version<'3.8'",