diff --git a/ubuntu/mastodon.zombocloud.com.yml b/ubuntu/mastodon.zombocloud.com.yml
index 2baebe9..d9f303c 100644
--- a/ubuntu/mastodon.zombocloud.com.yml
+++ b/ubuntu/mastodon.zombocloud.com.yml
@@ -86,3 +86,9 @@
           }
       proxycache:
         - proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=CACHE:10m inactive=7d max_size=1g
+      ssl:
+        - ssl_protocols TLSv1.2
+        - ssl_dhparam "/etc/nginx/dhparams.pem"
+        - ssl_session_timeout 1d;
+        - ssl_session_cache shared:SSL:50m;
+        - ssl_session_tickets off;