diff --git a/inventory/group_vars/all/ssl.yml b/inventory/group_vars/all/ssl.yml
index 86346d84dd..db40746fcb 100644
--- a/inventory/group_vars/all/ssl.yml
+++ b/inventory/group_vars/all/ssl.yml
@@ -16,7 +16,7 @@
 ## SSL
 # These do not need to be configured unless you're creating certificates for
 # services running behind Apache (currently, Horizon and Keystone).
-ssl_protocol: "ALL -SSLv2 -SSLv3 -TLSv1.0 -TLSv1.1"
+ssl_protocol: "ALL -SSLv2 -SSLv3 -TLSv1 -TLSv1.1"
 # Cipher suite string from https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
 ssl_cipher_suite: "ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS"