diff --git a/.github/workflows/deploy-prod.yaml b/.github/workflows/deploy-prod.yaml
index be38115..3591be9 100644
--- a/.github/workflows/deploy-prod.yaml
+++ b/.github/workflows/deploy-prod.yaml
@@ -120,7 +120,7 @@ jobs:
             --set-string sentry_dsn="$SENTRY_DSN" \
             --set-string database.encryptionSecret="${{ secrets.PROD_DB_ENCRYPTION_KEY }}" \
             --set-string smtp.host="$SMTP_HOST" \
-            --set-string smtp.port="$SMTP_PORT" \
+            --set smtp.port="$SMTP_PORT" \
             --set-string smtp.username="$SMTP_USERNAME" \
             --set-string smtp.password="$SMTP_PASSWORD" \
             --set-string smtp.tls="$SMTP_USE_TLS" \