diff --git a/.env b/.env
index 5e8a01c6a..c11c8d590 100644
--- a/.env
+++ b/.env
@@ -103,7 +103,7 @@ ADMINER_TAG=4-3.24.4
 APACHE_TAG=2.4-4.12.2
 ATHENAPDF_TAG=2.16.0
 MEMCACHED_TAG=1-2.15.3
-OPENSMTPD_TAG=6-1.18.2
+OPENSMTPD_TAG=6-1.18.3
 RSYSLOG_TAG=latest
 WEBGRIND_TAG=1-1.30.0
 XHPROF_TAG=3.7.6