diff --git a/requirements-docs.in b/requirements-docs.in
index ec12fbea..87663485 100644
--- a/requirements-docs.in
+++ b/requirements-docs.in
@@ -7,6 +7,7 @@ acme
 arrow
 boto3
 botocore
+certbot
 certsrv
 CloudFlare
 cryptography
diff --git a/requirements-docs.txt b/requirements-docs.txt
index e3d80774..84357685 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -66,6 +66,7 @@ botocore==1.20.22
     #   boto3
     #   moto
     #   s3transfer
+certbot==1.13.0
 certifi==2020.12.5
     # via
     #   -r requirements-tests.txt