diff --git a/roles/n8n/defaults/main.yml b/roles/n8n/defaults/main.yml
index 3bdd372..c8b6a0a 100644
--- a/roles/n8n/defaults/main.yml
+++ b/roles/n8n/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 
 # Version to deploy
-n8n_version: 0.174.0
+n8n_version: 0.175.1
 # Root directory where n8n will be installed
 n8n_root_dir: /opt/n8n
 # User account under which n8n will run
diff --git a/roles/n8n/templates/env.j2 b/roles/n8n/templates/env.j2
index 7595b9a..4c5e3a0 100644
--- a/roles/n8n/templates/env.j2
+++ b/roles/n8n/templates/env.j2
@@ -16,8 +16,9 @@ N8N_SMTP_HOST={{ n8n_smtp_server }}
 N8N_SMTP_PORT={{ n8n_smtp_port }}
 N8N_SMTP_SSL={{ n8n_smtp_ssl | ternary('true','false') }}
 N8N_SMTP_SENDER={{ n8n_smtp_sender }}
+# Note : n8n requires N8N_SMTP_USER and N8N_SMTP_PASS, even if no login is required for relay
 N8N_SMTP_USER={{ n8n_smtp_user | default('smtp') }}
-N8N_SMTP_PASS={{ n8n_smtp_pass | default("smtp') }}
+N8N_SMTP_PASS={{ n8n_smtp_pass | default('smtp') }}
 N8N_EDITOR_BASE_URL={{ n8n_public_url }}
 {% if system_tz is defined %}
 GENERIC_TIMEZONE={{ system_tz }}