diff --git a/ansible/playbook.yml b/ansible/playbook.yml
index e180bd0..5613034 100644
--- a/ansible/playbook.yml
+++ b/ansible/playbook.yml
@@ -175,11 +175,13 @@
       openssl_certificate:
         path: /etc/nginx/ssl/vlad4.crt
         privatekey_path: /etc/nginx/ssl/vlad4.key
-        common_name: "vlad4"
+        selfsigned_digest: SHA256
         owner: root
         group: root
         mode: '0600'
         provider: selfsigned
+        selfsigned_not_before: 'now'
+        selfsigned_not_after: '+365d'
 
     - name: Configure Nginx as HTTPS proxy
       copy: